Specifications

• 	RANGE	RESOLUTION	ACCURACY
  Conductivity	0.0 to 499.9 uS/cm 500 to 4999 uS/cm 5.00 to 49.99 mS/cm 50.0 to 200.0 mS/cm	0.01 uS/cm  1 uS/cm  0.01 mS/cm  0.1 mS/cm	± 1% ± 2 uS/cm ± 1% ± 5 uS/cm ± 1% ± 0.05 mS/cm ± 2.5% ± 0.5 mS/cm
  TDS	0.0 mg/L to 200.0 g/L	0.1 mg/L	± 1% of reading
  Salinity	0.0 to 70.0 ppt	0.1 ppt	± 0.2%
  Temp.	-10.0 to 90.0 Centigrade	0.1 °C	± 0.2 °C or ± 0.4% full scale (whichever is greater)

• General

  • Temperature Sensor: Thermistor, 10k ohm, at 25 °C
  • Reference Temperature: From 15.0 to 25.0 °C, default is 25.0 °C
  • Temperature Coefficient: From 0.00 to 4.00%, default is 1.91%
  • TDS Constant: From 0.30 to 1.00, default is 0.65
  • Calibration Back-up: Yes
  • Automatic Temperature Compensation: Yes
  • Audio Feedback: All Touch Keys
  • Power Supply: 4x AAA batteries
  • Ambient Temperature: From 0 to 50 °C
  • Weight (Battery included): About 230 grams
  • Dimensions: 75mm×157mm×35mm