The Apera EC8500 (AI5522) is a premium handheld meter for measuring electrical conductivity (EC), total dissolved solids (TDS), salinity, and temperature. Its 2301T-S Brush-resistant Platinum Black (BPB) electrode supports a wide measurement range of 0–200 mS/cm. With IP57 protection, automatic temperature compensation, and GLP data logging, it is designed for nutrient-solution testing, fertigation quality control, and runoff monitoring.
• Brand: Apera Instruments
• Model / SKU: EC8500 / AI5522
• Measurement Parameters: EC, TDS, salinity, and temperature
• EC Range / Accuracy: 0–200 mS/cm / ±1% full scale ±1 digit
• TDS Range: 0.1 mg/L to 100 g/L
• Salinity Range: 0–100 ppt
• Included Electrode: 2301T-S BPB conductivity/temperature probe
• Calibration: Automatic 1–3-point calibration; recognizes 84 µS/cm, 1,413 µS/cm, 12.88 mS/cm, and 111.8 mS/cm standards
• Data Storage: 500 GLP records with values, temperatures, dates, and times
• Connectivity: USB data export with included PC-Link software for Windows
• Protection Rating: IP57, dust-tight and suitable for temporary immersion up to 1 metre for 30 minutes
• Power Supply: 3 AA batteries
• Included Accessories: Conductivity calibration solutions, USB cable, electrode clip, PC-Link software, and hard-shell carrying case
• Warranty: 3 years for the meter; 6 months for the probe
Key Advantage: The EC8500 combines a wide conductivity range with 500-record GLP data logging and USB export. Its replaceable BPB probe and rugged waterproof design make it useful for documenting source-water, nutrient-feed, and runoff measurements across commercial cultivation facilities.