{"product_id":"apera-sx721-portable-phorp-meter-kit","title":"Apera SX721 Portable pH\/ORP Meter Kit","description":"\u003cp\u003eThe Apera SX721 (AI463) is a professional handheld meter designed to measure pH, oxidation-reduction potential (ORP), and temperature in commercial cultivation and water-quality testing environments. The complete kit includes two interchangeable electrodes: the 201T-S pH\/temperature electrode, featuring a lithium-glass membrane and fiber-ceramic junction, and the 301Pt-S ORP electrode with a platinum sensing element. Both probes connect to the same meter, which automatically recognizes the connected electrode and switches to the appropriate measurement mode.\u003c\/p\u003e\n\n\n\u003cp\u003eDesigned for daily use in demanding cultivation environments, the SX721 features an IP57-rated housing, digital filtering for improved measurement stability, automatic temperature compensation, and a backlit LCD. Its onboard memory stores up to 400 measurement records that can be saved and recalled directly on the instrument without requiring a computer. This makes it suitable for monitoring nutrient reservoirs, checking irrigation water, verifying reverse-osmosis water quality, and evaluating oxidizer-based sanitation programs.\u003c\/p\u003e\n\n\n\u003cp\u003e• Product Type: Handheld pH\/ORP meter kit\u003cbr\u003e\n• Brand: Apera Instruments\u003cbr\u003e\n• Model: SX721\u003cbr\u003e\n• SKU: AI463\u003cbr\u003e\n• Measurement Parameters: pH, ORP (mV), and temperature\u003cbr\u003e\n• Included pH Electrode: 201T-S pH\/temperature electrode\u003cbr\u003e\n• pH Electrode Construction: Lithium-glass membrane with fiber-ceramic junction and integrated thermistor\u003cbr\u003e\n• Included ORP Electrode: 301Pt-S platinum ORP electrode\u003cbr\u003e\n• Electrode Recognition: Automatically identifies the connected electrode and selects the corresponding measurement mode\u003cbr\u003e\n• Temperature Compensation: Automatic (ATC) through the integrated pH-electrode thermistor\u003cbr\u003e\n• Calibration: Automatic multipoint calibration with automatic recognition of standard buffer solutions\u003cbr\u003e\n• Measurement Stability: Digital filtering and a stability indicator help reduce noise and identify settled readings\u003cbr\u003e\n• Additional Functions: Self-diagnosis, automatic power-off, and automatic salinity compensation\u003cbr\u003e\n• Display: Backlit LCD for visibility in low-light environments\u003cbr\u003e\n• Data Storage: Up to 400 measurement sets\u003cbr\u003e\n• Data Recall: Stored readings can be reviewed directly on the meter without a computer connection\u003cbr\u003e\n• Water and Dust Protection: IP57-rated housing, designed for dust-tight protection and temporary immersion\u003cbr\u003e\n• Primary Applications: Nutrient-solution testing, reservoir monitoring, irrigation-water checks, and water-quality verification\u003cbr\u003e\n• ORP Applications: Monitoring oxidation-reduction potential in water-treatment and sanitation programs using oxidizers such as hydrogen peroxide or chlorine dioxide\u003cbr\u003e\n• Suitable Growing Systems: Hydroponics, deep-water culture (DWC), nutrient film technique (NFT), rockwool, coco coir, and recirculating systems\u003cbr\u003e\n• Included Accessories: SX721 meter, 201T-S pH\/temperature electrode, 301Pt-S ORP electrode, calibration buffers, and rugged carrying case\u003cbr\u003e\n• Replacement Electrodes: 201T-S pH electrode and 301Pt-S ORP electrode are available separately\u003cbr\u003e\n• Warranty: 3 years for the meter and 6 months for the probes\u003c\/p\u003e\n\n\n\u003cp\u003eKey Advantage: The Apera SX721 combines pH and ORP testing in one rugged handheld instrument, eliminating the need to purchase separate meters for these measurements. Its interchangeable, automatically recognized electrodes allow operators to switch between nutrient-acidity checks and oxidation-reduction monitoring, while the 400-record onboard memory supports field documentation without a computer. The IP57-rated housing and replaceable probes make it practical for frequent use across multiple reservoirs, irrigation lines, and cultivation areas.\u003c\/p\u003e","brand":"Hydro Supply Co.","offers":[{"title":"Default Title","offer_id":68104531542052,"sku":"APRA-AI463","price":295.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0254\/3914\/1924\/files\/handheld-ph-orp-meter-kit-ai463.jpg?v=1794499875","url":"https:\/\/www.growitdepot.com\/products\/apera-sx721-portable-phorp-meter-kit","provider":"Grow It Depot","version":"1.0","type":"link"}