The Apera PC850 (AI5514) is a professional handheld meter designed for simultaneous pH, electrical conductivity (EC), TDS, and temperature measurement. It includes separate pH and conductivity electrodes with automatic temperature compensation. Its IP57-rated waterproof housing, adjustable TDS conversion, and foldable stand make it suitable for nutrient-solution testing and commercial fertigation operations.
• Brand: Apera Instruments
• Model / SKU: PC850 / AI5514
• Measurement Parameters: pH, EC, TDS, and temperature
• pH Range / Accuracy: 0–14 pH / ±0.01 pH ±1 digit
• EC Range / Accuracy: 0–200 mS/cm / ±1% full scale
• TDS Range: 0–100 g/L
• Included Electrodes: 201T-F pH/temperature and 2301T-S BPB conductivity/temperature probes
• Calibration: Automatic 1–3-point pH and 1–4-point EC calibration
• TDS Conversion Factor: Adjustable from 0.40 to 1.00
• Protection Rating: IP57 waterproof and dustproof
• Additional Features: Simultaneous pH/EC display, foldable stand, silicone grip cover, and electrode diagnostics
• ORP Capability: Supported with optional 301Pt-C electrode
• Warranty: 3 years for meter; 6 months for probes
Key Advantage: The PC850 combines simultaneous pH and EC measurement with adjustable TDS conversion in one rugged portable instrument, making daily source-water, nutrient-feed, and runoff testing easier across commercial cultivation facilities.