Description Overview GAOTek Automatic Conductivity Tester can test PH, Conductivity (Salinity), DO, Temperature. It can be used for tapping water, surface water measurement, ocean measurement, etc. Measuring various parameters based on optical or electrochemical probe sensor, with easy maintenance and reliable performance. Features Automatic or manual temperature compensation (pH) Automatic buffer recognition of US and NIST buffer sets (pH) Dedicated pushbuttons for key operations Reliable and Repeatable Results >1012 Ω input impedance (pH) 2 Points calibration (pH) 2-Wire conductivity (conductivity, salinity, TDS) 1 Point per range calibration (conductivity, salinity, TDS) Technical Specifications Range pH 0.00 pH to 14.00pH mV -1999.9 mV to 1999.9 mV Temperature 32.0°F to 212.0°F (0.0 ℃ to 100.0 ℃) Resolution pH 0.01pH mV 0.1mV Temperature 32.18 °F (0.1 ℃) Accuracy pH ±0.01pH mV ±0.4 mV (-1500.0 to 1500.0); ± 1mV ( -1999.9 to -1500.0 and 1500.0 to 1999.9) Temperature 32.36 °F (±0.2 ℃) pH Buffer Recognition US (pH4.01, 7.00, 10.01) or NIST (pH4.00, 6.86, 9.18), user selectable. Buffer Temp range 32.0°F to 140.0°F (0.0 ℃ to 60.0 ℃) pH Calibration 1-, 2- or 3-point calibration. pH Electrode Offset Recognition ±1.50 pH pH Electrode Slope Recognition ±30% at pH4.00, pH 4.01, pH 9.18 or pH 10.01. pH Temp Compensation Auto / manual 32.0°F to 212.0°F (0.0 ℃ to 100.0 ℃) Input Impedance >1013 ohms Power 6 X 1.5 Volt AAA batteries or 115V / 230 V AC adapter. Operating Ambient Conditions From 32 °F to 122 °F (0℃ to 50 ℃), at 90% RH. Case IP-54 waterproof Weight / Dimensions 1.11 lb (504 g) (Including batteries) / 5.9 in x 7.9 in x 2.8 in (150 mm x 203 mm x 72 mm)
