Feature: 1. Waterproof pH meter can be used to test both pH level and temperature(℃/°F) of almost any liquid and display results on the large LCD screen simultaneously. 2. Abandon using a screwdriver to calibrate the meter in such an old methods, from now on you can use the one-touch auto calibration function with the PH-097 meter, just simple to press ''CAL'' button to finish pH 6.86/4.01/9.01 calibration processes. 3. Features automatic temperature compensation (ATC), without too much efforts to read a guessing reading compared to use a pH litmus strips, our digital pH tester will provide you a very accurate reading up to two decimals within minutes. 4. Easy to use, just remove the protective cap, drops the meter electrode into solution to be tested without exceeding the immersion line, stir gently and wait for the reading to stabilize within minutes, read pH & temperature values on the LCD screen simultaneously. 5. Widely uses, full measurements of pH 0 - 14.00, it's widely applicable to test any liquid pH level in format of water, great for home and laboratory uses, like testing household drinking water, swimming pools, aquariums, spas, hot tub, hydroponics, food, wine and beer making and more. Specification: Condition: 100% Brand New Item Type: PH/Temperature Tester Material: ABS Color: As shown in the picture Weight: Approx.188g/6.6oz Batery: 4 x 1.5V LR44 battery(Not included) Package List: 1 x PH Meter1 x Small Screwdriver 1 x Instruction Manual Note: 1. Please allow 1-2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.