NOVEDEN 5 in 1 Digital Water Quality Test Meter TDS Salinity pH Tester White BlueNE-PHM-100-JQFeaturesMulti-Function Water Quality Monitoring: This tester is a versatile tool that monitors TDS, pH, salinity, EC meter, and temperature. Its comprehensive functionality makes water quality testing efficient and convenient for various applications.Portable and Wide Application: The portable design allows you to carry this water quality meter anywhere. It's suitable for measuring water quality in hydroponic systems, drinking water, tap water, RO system water, aquariums, sea water, pool water, and more.Temperature-Compensated Accuracy: The pH meter's temperature range from 0�C to 60�C (-0�F to 140�F) ensures accurate readings. Automatic temperature compensation guarantees reliable results, enabling testing in diverse environments with confidence.High-Precision Algorithm for Fast Response: Equipped with high-precision algorithm chips and electrodes, this digital water pH tester ensures accurate and swift responses. The HOLD/TEMP key simplifies stable measurement locking for convenient viewing and analysis. SpecificationInner packing size: 21 x 8 x 5 cmOuter packing size: 34 x 33 x 28.5cmSingle gross weight: 0.16kgPacking quantity: 50pcsMaterial: PlasticColor: White, blueBattery :3 LR44 button batteries (not included)Conductivity test range :0 ~ 200000us /cm 10.01 ~ 19.99ms 20.1 ~ 400ms /cmResolution :1uS/ cm; 0.1 ms /cmAccuracy: �2% of the readingTDS test range :0 ~ 1000ppm 1000ppm ~ 200000ppm 10.1 ~ 200.00pptResolution :1 ppm; 0.1 pptAccuracy: �2% of the readingSalinity measurement range :0.00 ~ 25.00%Analysis :0.01%Accuracy :0.01-5.00%(�0.1%)5.10-25.00%(�1%)pH test range :0.01-14.00pHAnalysis :ph value is 0.01Accuracy :� 0.05phTemperature Compensation: Automatic Temperature Compensation (ATC)Operating environment :0 to 60.0�C(32.0-140�F); RH 100%TDS factor :0. 4-1.0Temperature range :0.1-60.0�C/ 32.0-140�FTemperature accuracy :�0.5�CTemperature resolution :0.1�C /�FAutomatic shutdown :5 minutesDisplay size: about 33 � 24mmSize: about 183x37x37mmDisplay: No backlight is supportedWaterproof rating :IP67Power consumption :2.9mA, shutdown power consumption is 0The accuracy within 150ppt is more accurate, and the deviation above 160ppt is largerPackage Contents:1 x PH Meter1 x Instruction Manual