Electronic pH Tester, 5-in-1 Pool Water Tester with Backlight, pH/TDS/EC/Salinity/Temperature with ATC

Electronic pH Tester, 5-in-1 Pool Water Tester with Backlight, pH/TDS/EC/Salinity/Temperature with ATC Description

【5-in-1 Function】 This is a water testing kit with a pH tester, TDS meter, and EC salinity/temperature tester. The backlit LCD screen makes it easy to read the displayed values. 【Easy to Use】 Press the power button to turn on. Press "HOLD" to lock the value, press and hold "HOLD" to change the temperature unit. Press "MODE" to switch between the different functions. 【Absolute Accuracy】 pH resolution is 0.01 pH, accuracy 0.05 pH. TDS meter resolution is 1 ppm (0.1 ppt), accuracy 2%. Conductivity resolution is 1 µS/cm (0.1 mS/cm), accuracy 2%. Thermometer resolution is 0.1C/F, accuracy 0.5C. Salinity resolution 0.01%, accuracy 0.01-5.00% (0.1%), 5.10-25.00% (1%). 【Wide Application】 Ideal for home or laboratory use. Suitable for testing the pH balance of drinking water, swimming pools, aquariums, RO systems, spas, or hydroponic systems. 【Robust and Durable】 This pool tester is IP67 waterproof, so it can continue to be used even if it falls into the aquarium. 1. Before calibration, add the pH4.00/pH6.86/pH9.18 buffer powder to a container with 250 ml of distilled water and stir until the powder is completely dissolved. 2. Press the "ON/OFF" button to turn on the pH meter and switch to pH mode. 3. Place the electrode in the standard pH6.86 solution. and wait for the reading to stabilize (usually 5 to 10 seconds). 4. Press and hold the MODE/CAL button for 6 seconds and release it until the pH 6.86 reading stops flashing and the pH 6.86 calibration is complete. 5. Repeat the steps above to complete the pH 4.00/pH 9.18 calibration in order. NOTE: Always strictly follow the pH 6.86, pH 4.00, pH 9.18 calibration sequence. Otherwise, the calibration result will be inaccurate.