The Apera PH8500-DP (AI5552) is a professional handheld pH meter designed for liquid food, protein-containing solutions, infused beverages, TRIS buffers, and biotech or pharmaceutical samples. Its Swiss-engineered LabSen 823 electrode uses a Silver Ion Trap reference system and specialized Protelyte electrolyte to help prevent junction clogging and measurement drift in protein-rich samples. The IP57-rated meter also supports GLP data logging and USB export for quality-control documentation.
• Brand: Apera Instruments
• Model / SKU: PH8500-DP / AI5552
• pH Range: 0–14.00 pH
• Accuracy: ±0.01 pH
• Temperature Range: −5 to 100°C (23–212°F)
• Included Electrode: LabSen 823 glass pH/temperature electrode
• Calibration: Automatic 1–3-point calibration; recognizes pH 1.68, 4.00, 7.00, 10.01, and 12.45 buffers
• Data Storage: 500 GLP records with manual or automatic storage
• Connectivity: USB data output
• Protection Rating: IP57
• Power: AA batteries
• Warranty: 3 years for the meter; 6 months for the electrode
Key Advantage: The PH8500-DP combines portable pH testing with a protein-resistant electrode design and 500 traceable GLP records, making it useful for complex liquid samples and documented quality-control workflows.