Starter Pen Meter, Dissolved Oxygen, ST20D

After more than a century of perfecting the art of measurement through our durable weighing products, OHAUS precision is now available in a line of pen meters that provide accurate measurement of pH, oxidation-reduction potential ORP, conductivity, salinity, and total dissolved solids TDS. Starter pen meters are the economical option when you are simply looking for meters that will provide accurate measurement without restriction.DO pen meter, measurement range 0.0 to 19.9mg/L, temperature displayMeasurement Range 0.0 19.9 mg/LMeasurement Resolution 0.1 mg/LCalibration 1 PointTemperature compensation AutomaticWorking Environment 41F 104F, 80% RH, Non-condensingWorking Environment 5C 40C, 80% RH, Non-condensingNet Weight 110 g 3.88 ozATC YesMeter Type Dissolved OxygenProduct will be used On a Table; Work in Industrial; Classroom; In Wet; OutdoorTemperature Display YesTemperature Range 0 C ; 99 CDimensions Length 185 mm 7.28 inDimensions Width 45 mm 1.77 inDimensions Height 38 mm 1.5 inBattery Life 100 Hours with Disposable BatteriesAccuracy 0.5 CAccuracy Temperature 0.5 CAutomatic Shutdown Yes, After 6 minutes of non-useNumber of Buttons 3Power 4 AG13 Batteries IncludedProtection Rating IP67Temperature Sensor 50 K NTCWrist Strap YesKey Features Battery; Small, PortableMain Purpose Water AnalysisCountry of origin CNCustoms tariff number 9027102000Shipping Weight: 2 lbsResearch or further manufacturing use only, not for food or drug use.