GAOTek 1 to 5 Calibration Digital Point Meter for pH

Description Overview This 1 to 5 calibration digital point meter for pH has temperature resolution of 32.04°F or 32.04°F, power supply DC5 V, and PH accuracy of ±0.002 pH.   Features Auto-Read function locks measurement endpoint for accuracy Setup menu customizes pH buffer, calibration points, and more Reset function reverts settings to factory defaults automatically Expanded storage saves or recalls up to 500 records USB interface enables data transfer and interval measurements   Technical Specifications Power Supply DC 5 V power adapter PH Accuracy ±0.002 pH PH Resolution 0.1pH, 0.01 pH, 0.001 pH, selectable PH Area -2,000 pH to 20,000 pH Ion Resolution 0.001, 0.01, 0.1,1 Ion Accuracy ±0.5% FS (monovalent), ± 1 %,  FS (divalent) Temperature Resolution 32.04°F or 32.04°F (0.10 ºC or 0.10 ºC) Temperature Accuracy 31.1 ºF to 32.9 ºF (-0.5ºC to 0.5ºC) to 30.38 ºF to 33.62 ºF (- 0.9 ºC to 0.9 ºC) Storage 500 records  Weight 3.31 lb (1.5 kg) Dimensions 8.27 in x 7.4 in x 2.3622 in (210 mm x 188 mm x 60 mm)