{"product_id":"optical-dissolved-oxygen-meter","title":"Optical Dissolved Oxygen Meter","description":"\u003ch1 class=\"p1\"\u003eThe Sper Scientific Optical Dissolved Oxygen (DO) Meter is an ideal tool for low-maintenance dissolved oxygen measurement.\u003c\/h1\u003e\n\u003cp class=\"p1\"\u003eIt delivers accurate results even in low oxygen ranges and remains unaffected by acid gases, ensuring reliable performance in challenging environments. With no polarization time or probe maintenance required, this DO meter offers unparalleled ease of use.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe large, easy-to-read LCD screen simultaneously displays both dissolved oxygen and temperature, with the flexibility to choose between % and mg\/L units for DO measurements. Equipped with built-in automatic temperature compensation (°C\/°F), the device also supports manual salinity and pressure compensation for enhanced precision. Additionally, 2-point DO calibration is available, further ensuring accurate measurements every time.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003ePerfect for professionals who need efficient and reliable DO monitoring without the hassle of frequent upkeep.\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li2\"\u003eGreat for low maintenance D.O. measuring work\u003c\/li\u003e\n\u003cli class=\"li2\"\u003eRemain accurate in low oxygen range and won’t be affected by acid gases\u003c\/li\u003e\n\u003cli class=\"li2\"\u003eNo polarization time and no probe maintenance work\u003c\/li\u003e\n\u003cli class=\"li2\"\u003eLarge LCD with D.O. \u0026amp; Temperature Display\u003c\/li\u003e\n\u003cli class=\"li2\"\u003eSelectable % and mg\/L unit for D.O. Value\u003c\/li\u003e\n\u003cli class=\"li2\"\u003e°C\/°F Automatic Temperature Compensation Built-in\u003c\/li\u003e\n\u003cli class=\"li2\"\u003eManual Salinity and Manual Pressure Compensation\u003c\/li\u003e\n\u003cli class=\"li2\"\u003e2 Points D.O. Calibration Available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p5\"\u003e\u003cstrong\u003eThe Optical DO Meter's precision and low maintenance design make it a highly versatile tool for a variety of industries:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li5\"\u003e\n\u003cb\u003eAquaculture\u003c\/b\u003e: The Optical DO Meter ensures optimal conditions for fish and other aquatic organisms, with fisheries and aquaculture farms using it to maintain the health of aquatic life.\u003c\/li\u003e\n\u003cli class=\"li5\"\u003e\n\u003cb\u003eEnvironmental Monitoring\u003c\/b\u003e: The Optical DO Meter is used for measuring dissolved oxygen in rivers, lakes, and oceans to assess water quality.\u003c\/li\u003e\n\u003cli class=\"li5\"\u003e\n\u003cb\u003ePharmaceuticals\u003c\/b\u003e: In bioreactors, precise DO control is necessary for cell culture growth.\u003c\/li\u003e\n\u003cli class=\"li5\"\u003e\n\u003cb\u003eFood and Beverage\u003c\/b\u003e: Especially important for those involved in brewing beer or fermenting other products.\u003c\/li\u003e\n\u003cli class=\"li5\"\u003e\n\u003cb\u003eWastewater Treatment\u003c\/b\u003e: The Optical DO Meter monitors the DO value during the treatment process, which is crucial for the breakdown of biological waste.\u003c\/li\u003e\n\u003cli class=\"li5\"\u003e\n\u003cb\u003eBrewing and Fermentation\u003c\/b\u003e: The Optical DO Meter controls oxygen levels during fermentation, affecting the taste and quality of the final product.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eComplete Kit Includes: Meter, Optical D.O. Probe, \u003cmeta charset=\"utf-8\"\u003e(6) AAA batteries, Hard Carry Case and Instructions.\u003c\/h4\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" class=\"t1\" style=\"width: 100.091%;\" height=\"1164\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td1\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p2\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eModel\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td2\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p2\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003e860067\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td3\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eDO Measuring Range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td4\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0.0%~200.0%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td5\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eDO Accuracy of % Scale\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td6\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e\u003cspan class=\"s2\"\u003e±3% of Full Scale\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td7\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eDO Resolution\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td8\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0.1%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td9\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eDO Measuring Range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td10\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e\u003cspan class=\"s3\"\u003e0.0 \u003c\/span\u003e\u003cspan class=\"s2\"\u003emg\/L\u003c\/span\u003e\u003cspan class=\"s3\"\u003e~20.0 \u003c\/span\u003e\u003cspan class=\"s2\"\u003emg\/L\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 71.1875px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td11\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eDO Accuracy\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td12\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e＜5mg\/L: ±0.3 mg\/L\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e5~20 mg\/L: ±0.4 mg\/L\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td5\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eDO Resolution\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td6\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e\u003cspan class=\"s2\"\u003e0.1 mg\/L\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 55.1875px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td3\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eTemperature Measuring Range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td4\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0~40.0℃ (32~104°F)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td5\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eTemperature Accuracy\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td6\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e±0.5℃ (0.9)°F\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td3\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eTemperature Resolution\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td4\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0.1℃\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td5\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eAuto Temp. Compensation\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td6\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0.0~40.0℃ (32~104°F)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td7\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eManual Compensation\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td8\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003eIncluded\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td9\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eSalinity Adjustable Range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td10\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0.0~55.0 ppt\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td7\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eSalinity Resolution\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td8\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0.1 ppt\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 71.1875px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td13\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eBarometric Pressure\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td14\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003eManual Compensation\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e50.0~115.0 Kpa\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 55.1875px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td3\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eBarometric Pressure Resolution\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td4\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0.1 Kpa\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td5\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eDO Calibration Points\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td6\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0.0% and 100%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td7\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eLCD Size\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td8\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e54 (L)*32.5 (W) mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td9\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eOperating Temperature\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td10\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0~50℃\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td7\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eOperating RH%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td8\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003eHumidity ＜85%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td5\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eStorage Temperature\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td6\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0~50℃\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td3\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eStorage RH%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td4\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003eHumidity ＜80%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 55.1875px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td5\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eSensor Life Time\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td6\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e\u0026gt;1 year (with proper maintenance)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td7\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eMeter Size\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td8\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e169(L) * 78.3(W) * 43.4(H) mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td9\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eWeight\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td10\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e~400g\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td7\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eBattery\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td8\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003eAAA *6 PCS\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td5\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p4\"\u003ePower Consumption\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td6\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p4\"\u003e10 hours operation\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 74.7812px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td15\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p4\"\u003eKit Includes\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td16\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p4\"\u003eMeter, Optical D.O. Probe, (6) AAA batteries, Hard Carry Case, Manual\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003ch4\u003eDownloads\u003c\/h4\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/BTM-4208SD-i.pdf\" target=\"_blank\"\u003e \u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Optical DO Meter Instructions\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860067-i.pdf\" target=\"_blank\"\u003e\u003cimg alt=\"PDF\" style=\"float: left;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\"\u003e\u003c\/a\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/BTM-4208SD-i.pdf\" target=\"_blank\"\u003e\u003cbr\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Optical DO Meter Instructions\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860067-i.pdf\" target=\"_blank\"\u003eUsers Manual\u003c\/a\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cbr\u003e  \u003ca rel=\"noopener\" title=\"Optical DO Meter Brochure\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860067_Brochure.pdf\" target=\"_blank\"\u003e\u003cimg alt=\"PDF\" style=\"float: left;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\"\u003e \u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/BTM-4208SD-i.pdf\" target=\"_blank\"\u003e\u003cbr\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Optical DO Meter Instructions\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860067-i.pdf\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Optical DO Meter Brochure\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860067_Brochure.pdf\" target=\"_blank\"\u003eProduct Brochure\u003c\/a\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv align=\"center\"\u003e\n\u003ch4 style=\"text-align: left;\"\u003eComparison Chart\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003csection style=\"max-width: 1400px; margin: 0 auto; padding: 40px 20px; font-family: Arial,sans-serif;\"\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ch2 style=\"text-align: center;\"\u003eCompare Sper Scientific Dissolved Oxygen (DO) Meters\u003c\/h2\u003e\n\u003csection style=\"max-width: 1400px; margin: 0 auto; padding: 40px 20px; font-family: Arial,sans-serif;\"\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; height: 1455.1875px;\"\u003e\n\u003c!-- IMAGE ROW --\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 141px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 141px;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 141px;\" align=\"center\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" target=\"_blank\"\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" alt=\"Waterproof Dissolved Oxygen Meter Pen - Sper Scientific Direct\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Waterproof-Dissolved-Oxygen-Meter-Pen-525408.jpg?v=1752691879\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 141px;\" align=\"center\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" target=\"_blank\"\u003e\u003cimg alt=\"Combination Water Meter Kit with pH Probe | Sper Scientific Direct\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Combination-Water-Meter-Kit-with-pH-Probe.jpg?v=1752691876\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 141px;\" align=\"center\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" target=\"_blank\"\u003e\u003cimg alt=\"Dissolved Oxygen Meter Kit | Sper Scientific Direct\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Dissolved-Oxygen-Meter-Kit-718738.jpg?v=1752691873\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 141px;\" align=\"center\"\u003e\n\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Rechargeable dissolved oxygen pen with 5 meter cable by Sper Scientific featuring a digital display.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable-860055-313971.jpg?v=1752691883\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 141px;\" align=\"center\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Optical Dissolved Oxygen Meter 1\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/optical-dissolved-oxygen-meter-860067-101931.jpg?v=1752691897\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 141px;\" align=\"center\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Portable DO Meter and Sensor\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/portable-optical-dissolved-oxygen-meter-860073-479959.jpg?v=1752691863\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c!-- HEADER --\u003e\n\u003ctr style=\"background: rgb(40, 113, 232); color: rgb(255, 255, 255); height: 18px;\"\u003e\n\u003cth style=\"width: 17.005908%; height: 18px;\"\u003eModel Number\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(255, 255, 255); text-decoration: underline;\"\u003e850045\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.70379%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" style=\"color: rgb(255, 255, 255);\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e850048DOK\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.70379%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca style=\"color: rgb(255, 255, 255);\" rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e850081DOK\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" style=\"color: rgb(255, 255, 255);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e860055\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" style=\"color: rgb(255, 255, 255);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e860067\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255); text-decoration: underline;\"\u003e\u003ca style=\"color: rgb(255, 255, 255); text-decoration: underline;\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e860073\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 90px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 90px;\"\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" target=\"_blank\"\u003e\u003cstrong\u003eWaterproof DO Meter Pen\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 90px;\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" target=\"_blank\"\u003eCombination Water Meter Kit w\/ DO Probe\u003c\/a\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 90px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" target=\"_blank\"\u003e\u003cstrong\u003eDissolved Oxygen Meter Kit\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eRechargeable DO Pen w\/ 5 Meter Cable\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eOptical Dissolved Oxygen Meter\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003ePortable Optical Dissolved Oxygen Meter\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Range (% Saturation)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–100% O₂ in air\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–200%\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–100.0%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.0–199.9%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.0–200.0%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0-200%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Range (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–20 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.00–20.00 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0 -20 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eDO Accuracy (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u0026lt;5: ±0.3 mg\/L≥5: ±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e±0.3mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Resolution (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.01 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.01mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Accuracy (%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.7% O₂\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±2% F.S.\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±0.7% O₂\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±3% F.S.\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±3% of Full Scale\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±3%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Resolution (%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eTemp. Range\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–50.0°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–40.0°C \/ 32–104°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0°–45°C \/ 32°–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eTemp. Accuracy\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.8°C \/ 1.5°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±0.8°C \/ ±1.5°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.5°C (0.9°F)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eTemp. Resolution\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eAuto Temp. Comp. (ATC)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e10–40°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–40°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSalinity Resolution\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 ppt\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 ppt\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eBarometric Pressure Comp.\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e500–760 mmHg(66.7–101.3 kPa)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eManual, 50–115 kPa\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Calibration\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e1-Point (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e1-Point (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e1-Button (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e1-Point (100% air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2-Point (0% \u0026amp; 100%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2-Point (0% \u0026amp; 100%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eProbe Technology\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eOptical (fluorescent) DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eOptical (fluorescent) DO probe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSensor Warmup Time\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e~30 min (cal.)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e~30 min (cal.)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026lt;60 seconds\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eNone\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e~10 min (cal.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSensor Response Time\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026lt;30 seconds\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eFast\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSensor\/Probe Lifetime\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026gt;6 months\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026gt;1 year\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026gt;1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures pH\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures ORP \/ mV\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures Conductivity\/TDS\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures Salinity\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eMemory \/ Data Storage\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eMax\/Min record\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e99 memory points\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e99 memory points\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e+100,000 memory points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eRS232 \/ Data Output\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003eRS232\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eUSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDisplay Type\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eDual LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003eLarge backlit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003eBacklit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eBacklit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eLarge LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eLarge LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSimultaneous DO \u0026amp; Temp.\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18.1875px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 18.1875px;\"\u003eBacklight\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eBattery Type\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e(4) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e(4) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e9V\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e3.7V 500mAh Rechargeable Li-ion\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e(6) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eRechargeable Li-ion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eCharging\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eUSB Type-C(~1.5 hr)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eUSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eIP Rating\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eIP-67\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eIP-67\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eIP-67 Housing \/ IP-68 Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSpare Probe Heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eElectrolyte Solution\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/div\u003e","brand":"Sper Scientific Direct","offers":[{"title":"Default Title","offer_id":44213067808804,"sku":"860067","price":688.85,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0254\/3914\/1924\/files\/optical-dissolved-oxygen-meter-860067-101931.jpg?v=1779986147","url":"https:\/\/www.growitdepot.com\/products\/optical-dissolved-oxygen-meter","provider":"Grow It Depot","version":"1.0","type":"link"}