The Apera PH8500-WW (AI5559) is a professional handheld pH meter designed for wastewater, turbid liquids, slurries, and samples containing proteins or sulfides. It includes the Swiss-engineered LabSen 333 electrode, featuring a corrosion-resistant POM body, solid polymer electrolyte, and open-junction design to reduce clogging in challenging samples. With GLP data logging, USB output, and IP57 protection, it supports reliable field measurements and documented quality control.
• Brand: Apera Instruments
• Model / SKU: PH8500-WW / AI5559
• pH Range / Accuracy: 0–14 pH / ±0.01 pH
• Temperature Range: −5 to 80°C (23–176°F)
• Included Electrode: LabSen 333 POM-body pH/temperature electrode
• Electrode Design: Solid polymer electrolyte with open double-pore junction; no electrolyte refilling required
• Calibration: Automatic 1–3-point calibration; recognizes up to 12 buffer solutions
• Data Storage: 500 GLP measurement records, with manual or automatic logging
• Connectivity: USB data output for computer-based recordkeeping
• Protection Rating: IP57, waterproof and dustproof
• Power: AAA batteries; foldable stand for benchtop use
• Warranty: 3 years for the meter; 6 months for the electrode
Key Advantage: The PH8500-WW combines a clog-resistant electrode for difficult liquid samples with 500-record GLP storage and USB export. Its portable design and foldable stand support both field testing and benchtop quality control.