Widely used in aquariums, glass fish ponds, pharmaceutical research, agriculture, laboratories, aquatic environment, quality control and other fields.FeaturesEasy to use, high accuracy.Quick and easy installation and operation.EC Supports 3point calibration automatic identification 1413us 12.88ms and 111.8msBuiltin 3 calibration points 1413uScm 12.88ms cm 111.8ms cmPH 1 point 6.86 or 2 points 6.86 4.00 6.86 9.18 or 3 points 6.86 4.00 9.18 can automatically identify the calibration solution.This is a professional water level test instrument, the operation is simple, the appearance is fashionable, small size and easy to put in your pocket.Has automatic temperature compensation.5 minutes without use, the meter will automatically turn off. Save power, extend battery life. Battery not includedWith backlight function, it is more comfortable to read.SpecificationsMaterial ABSECMeasuring range 0 to 10000uScm 10.0119.99ms 20.1400ms cmResolution 1uScm 0.1 mScmAccuracy 2 of the readingTDSMeasuring range 0 to 1000ppm 1000ppm to 10000ppm 10.1 to 200.0 PPTResolution 1ppm 0.1 PPTAccuracy 2 of the readingSalinityResolution 0.01Accuracy 0.015.00 0.1 5.1025.00 1PHMeasuring range 0.0114.00pHResolution 0.01pHAccuracy 0.05pHOperating environment 0 to 60.0 Celsius 32.0140 FahrenheitRH 100TDS factor 0.4 to 1.0Temperature range 0.160.0 Celsius 32.0140 FahrenheitTemperature accuracy 0.5 CelsiusTemperature resolution 0.1 CelsiusFahrenheitBattery 3LR44 not includedWaterproof rating IP67Display size 3324mmItem size 18037mm7.11.5inItem weight 86g3.0ouncePackage size 1833737mm7.21.51.5inPackage weight 90g3.2ouncesPacking list1Water Quality Monitor Tester3PH buffer powder