Electronic pH Meter, 5-in-1 Pool Water Tester with Backlight, pH/TDS/EC/Salinity/Temperature with ATC, High Precision pH Meter with 0.01 Resolution, for Drinking Water, Aquarium

General Description This 5-in-1 electronic pH tester is a versatile tool for measuring water quality. It allows you to test pH, conductivity (EC), salinity, temperature, and TDS (Total Dissolved Solids) with high accuracy. Its backlit LCD screen makes it easy to read the displayed values, even in low-light conditions. Technical Specifications pH Resolution: 0.01 pH pH Accuracy: ±0.05 pH TDS Resolution: 1 ppm / 0.1 ppt TDS Accuracy: ±2% Conductivity Resolution: 1 µS/cm / 0.1 mS/cm Conductivity Accuracy: ±2% Temperature Resolution: 0.1 ℃ / ℉ Temperature Accuracy: ±0.5 ℃ Salinity Resolution: 0.01% Salinity Accuracy: 0.01-5.00% (±0.1%), 5.10-25.00% (±1%) Waterproofing: IP67 Compatibility and Accessories pH Calibration Powder 4.00 pH Calibration Powder 6.86 pH Calibration Powder 9.00 Instructions for Use Installation To calibrate the tester, add the buffer powder to a container containing 250 ml of distilled water and stir until completely dissolved. Turn on the tester and place the electrode in the standard solution to stabilize the reading before proceeding with calibration. To use the tester, press the power button to turn it on. Use the "HOLD" button to lock the displayed value and the "MODE" button to switch between functions. It is recommended to immerse the electrode in water for a few hours before use to ensure accurate readings. For more operating videos, please visit the following link: https://files.fm/u/e2w326wwvg