Description Overview GAOTek’s bench-top meter combines pH, ORP, and ion measurement functions in one precision tabletop unit, ideal for lab or QA/QC settings. It features automatic buffer recognition and electrode health diagnostics for streamlined maintenance. The system supports flexible calibration routines (1–5 points), multiple measurement units and methods, USB interface, and proper data logging with timestamps for GLP compliance. Its compact footprint and intuitive interface make it ideal for everyday laboratory workflows. Features Multi-Mode Measurement: pH (up to 5-point calibration), ORP, and Ion (2–5 points with various measurement methods). Automatic Electrode Diagnostics: Displays pH slope and offset to signal electrode health. Auto-Read & Limit Alarm: Records stable readings automatically and triggers alarms on out-of-range values. Memory & Timestamping: Stores up to 500–1000 data entries with real-time clock (GLP ready). USB Connectivity: Enables data export and computer interfacing. Comprehensive Calibration: pH recognizes USA, NIST, DIN, or custom buffers; ion and hardness support 2–5 points and diverse units. Password Protection: Secure settings against unauthorized changes. Factory Reset Function: Restore default config easily. Temperature Compensation: Manual or auto compensation across 0–100 °C. Compact Design: Approx. 210 × 188 × 60 mm, weighing ~1.5 kg. Applications Laboratory analysis in chemistry, biochemistry, and environmental science. Quality control in pharmaceuticals, food & beverage, and water treatment facilities. Educational labs require precise multi-parameter water testing. R&D and industrial settings where trace ionic measurement is essential. Technical Specifications pH Range –2.000 to 20.000 pH pH Accuracy / Resolution ±0.002 pH; selectable 0.1 / 0.01 / 0.001 pH ORP Range / Accuracy ±1999.9 mV; accuracy ±0.2 mV Ion Range ~0.001 to 19,999 ppm or equivalent; resolution up to 0.001 units; ±0.5 % F.S. (monovalent) Calibration Points pH: 1–5; Ion & Hardness: 2–5 Temperature Range / Acc. 0–105 °C (32–221 °F); ±0.5 °C / ±0.9 °F Temperature Compensation Manual or Auto (0–100 °C) Memory Stores 500–1000 readings with timestamp Output USB Interface LCD display; BNC electrode connectors Power Supply DC 5 V / 400 mA adapter Dimensions (W × D × H) 210 × 188 × 60 mm; Weight: ~1.5 kg Security Features Password protection; Calibration-due alarm; Auto-Read & reset functions
