Description Overview GAOTek portable ph meter is a perfect combination of advanced electronic technology, sensor technology, and software design. It can measure PH, ORP, conductivity, TDS, salinity, resistivity, dissolved oxygen, temperature, and other parameters for high-precision measurement of water solutions. This is the most cost-effective portable water quality analysis instrument. Technical specification Dissolved oxygen Measuring range 0 mg/L to 20 mg/L (ppm) 0 % to 200 % Resolution 0.1/0.01 mg/L (ppm) 1/0.1% Accuracy Meter: 0.10 mg/L, overall: 0.40 mg/L Response time < 30 s (77 °F (25 °C), 90% response) Residual current < 0.1 mg/L Temp. compensation range 32 °F to 113 °F (0 °C to 45 °C) (automatic) Salinity compensation range 0 ppt to 45 ppt (automatic) Pressure compensation 66 kPa to 200 kPa (manual) Automatically calibration Air saturated by water; Water saturated by Electrode type Polarogram type Another technical parameter Data storage 400 groups Storage content Series number, Power measuring value measuring unit Size and weight and temperature Quality and safety Two AA batteries (1.5 V x 2) Working condition Environment temperature 14.17 in x 10.6 in x 2.99 in (360 mm x 270 mm × 76 mm)/ 1.7 Kg Environment Humidity ISO 9001:2000, CE, and CMC IP rating 41 °F to 95 °F (5 to 35 °C) (0.01 grade)
