Feature:1. It is a multifunctional water quality tester, which can test ph, tds, ec, salinity and temperature of the water.2. High precision and fast response: fast to get the testing result and can test the PH about 0.01‑14.00pH, temperature about 0.1‑60.0℃ 32.0‑140℉ and salinity value about 0.01‑25.00%.3. Adopts the digital screen display with backlight, which is more clear and convenient to read data.4. Suitable for water sources, aquariums, hydroponics, swimming pools and other water systems.5. Compact pen-shape design, lightweight for mobility, you can test water anywhere to get the purest water.Specification:Condition: 100% Brand NewItem Type: Water Quality TesterMaterial: ABSElectrical Conductivity Test Range: 0-10000uS/cm 10.01-19.99ms 20.1-400mS/CM Resolution: 1uS/cm; 0.1 mS/CMAccuracy: ±2% of the readingTds Test Range: 0-1000ppm 1000ppm -10000ppm 10.1-200.0 PPTResolution: 1ppm; 0.1pptAccuracy: ±2% of the readingSalinity (Salinity) Measuring Range: 0.01-25.00%Resolution: 0.01%Accuracy: 0.01-5.00% (±0.1%) 5.10-25.00%(±1%)PH Test Range: 0.01-14.00pHResolution: 0.01pH Precision: ±0.05pHTemperature Compensation: Automatic temperature compensation (ATC)Working Environment: 0-60.0℃ (32.00-140 ℉); 100% RHTDS Factor: 0.5Temperature Range: 0.1-60.0℃ 32.0-140℉Temperature Accuracy: ±0.5℃Temperature Resolution: 0.1℃/℉Automatic Power-off: 5 minBattery: 3 x 1.5 LR 44 (not included)Display Size: Approx. 33 x 24mm / 1.3 x 1inSize: Approx. 183 x 37 x 37mm / 7.2 x 1.5 x 1.5inDisplay: Supports backlightWaterproof Grade: IP67Power Consumption: 2.9mAShutdown Power Consumption: 0Weight: Approx. 160g / 5.7oz.Package List:1 x Water Quality Tester1 x InstructionNote:1. Please allow 1‑3cm error due to manual measurement. Thanks for your understanding.2. Be sure to clean the electrodes after each use.3. Accuracy within 150ppt is relatively accurate, while deviation above 160ppt is relatively large.4. This product will be shipped without powder.