PH Measuring Range : -2 to 16.00 pH
ORP Measuring Range : -1999 to 1999 mV
Conductivity Range : 0.0 μS/cm to 199.9 mS/cm
TDS Range : 0.1 mg/l to 199.9 g/l
Salinity Range : 0.0 to 99.9 psu
Resistivity Range : 0 to 20MΩ•cm
Temp. Measuring Range : -5 °C to 110 °C
Resolution pH : 0.01 pH
Resolution mV : 1 mV
Resolution Conductivity : 0.1 μS/cm, Auto-range
Resolution TDS : 0.01 mg/l, Auto-range
Resolution Salinity : 0.01 psu, Auto-range
Resolution Resistivity : 0.01 Ω•cm, Auto-range
Accuracy pH : ± 0.01 pH
Accuracy mV : ± 1 mV
Accuracy Conductivity : ± 0.5% F.S
Accuracy TDS : ± 0.5% F.S
Accuracy Salinity : ± 0.5% F.S
Accuracy Resistivity : ± 0.5% F.S
Accuracy Temperature : ± 0.3 °C
Calibration pH : 1-5 points, 6 predefined buffer groups
Memory : 1000 measurements 5 calibration data for each sensor ID
Display : LCD with Backlight
Power Supply : Rechargeable Li-battery, 2600mAh; > 300 charge and discharge times
IP Protection : IP67
Housing : ABS / PC
Communication : Micro-USB
Battery Life : 40 Hours with Rechargeable Battery
Dimensions : 1.57 in x 9.05 in x 3.94 in (40 mm x 230 mm x 100 mm)
Net Weight : 0.77 lb (0.35 kg)
*) ST400MG package : ST400MF with portable bag