Hecotrax Water Quality Monitor Tester for Hydroponics/Aquariums/Pools/Drinking Water, 4 in 1 Digital pH Meter with PH/TDS/EC/Temperature Function

Data increases due to unstable impurities in the water. When the water surface is stable, be sure to put the device in water. If the measurement data is still beating, stir the water evenly and when the water surface is stable, place the device in the water. (Be sure to clean with pure water after use. Otherwise, the electrode will be contaminated and the accuracy of the measurement data will be affected.) Product Specifications Measurement range: TDS: 0-1999ppm, 0-19.99ppt EC: 0-1999uS / cm, 0-19.99mS / cm PH: 0.01-14.00pH Temperature: 0-50 ? / 32-122 ? Resolution: PH: 0.02PH EC: Shi 2% F.S TDS: Shi 2% F.S Temperature: Soil 0.5 C Auto off: 5 minutes Automatic calibration: 2-point automatic calibration (3-point calibration is also possible) Power supply: 3 * 1.5V (AG-13 button battery) Operating temperature: 0 ~ 50 ? Dimensions: 188mm x 35mm x 35mm ProductWeight: 98g Method of operation: 1. Remove the protective cap. 2. Press the ON key to turn on the meter. 3. Immerse the electrode in the solution to be tested. 4. Stir gently and wait for the readings to stabilize. 5. Press ""HOLD"" key to save the reading. When measuring repeatedly, Press the ""HOLD"" key again. 6. After use, press the OFF key to turn on the meter. Rinse the electrode Wash with distilled water to minimize contamination. Replacing the protective cap After use. Note: Waterproof design with replaceable electrodes. Automatic calibration: ""2-point automatic calibration (3-point calibration is also possible)"" with automatic temperature compensation. Immerse the electrode in PH (6.86, 4.00) standard solution and press the CAL button to calibrate automatically. pH: 3-point automatic calibration(6.86 and 4.00 & 9.18 pH); TDS: 1413?S / cm; EC: 1413?S / cm