Easy, fast and high accuracy: Just remove the protective cap and immerse the pH meter electrode in the solution and press the ON/OFF button to measure. The tester features a sensitive electrode sensor to read accurate pH levels from 0-14. Ensure your swimming pool, general hydroponic pH or even drinking water has perfect pH balance and provides a safe to use Auto Calibration: Auto Calibration: The pH tester has an automatic temperature stabilization feature that adjusts to temperatures and water quality to give pH readings almost instantly . You can also calibrate the tester with a single button using the buffer solution Automatic temperature compensation: No need to worry about the temperature of the liquid to be tested, the pH -meter with built-in Automatic Temperature Compensation (ATC). Thus, it can accurately determine the pH value of the sample at any temperature within a range of 0C to 60C Wide Uses: Ideal for home or laboratory use , suitable for testing pH balance of drinking water, for RO system for aquarium, swimming pool, SPA, or hydroponics. Suitable for a wide range of applications Digital Water pH Meter: The pH meter is useful for people who need a pH tester for home use and Laboratory Ideal for home or laboratory use. Suitable for testing pH balance of drinking water, for RO system for aquarium, swimming pool, food, SPA, or hydroponics Specifications: Measurement range: 0.00 -14.00 pH Resolution: 0.01 pH Accuracy: 0.01 pH Details: Durable and high quality: very accurate over a measuring range of 0-14 pH, resolution of 0.1 pH, measures and displays the pH result simultaneously with the LCD display, fast and reliable reading Just d remove the protective cap and immerse the electrode of the pH meter in the solution and press the ON/OFF button to measure It is much more effective than an outline of the colors on a strip of paper. sunflower Easy to calibrate: you can simply follow the instructions on the supplied packet of 4.01 or 6.86 solution, and immerse the pH meter in the solution until the numbers are stable Pocket size: only 52 g, with dimensions 15.2 x 2.8 x 1.3 cm so you can slip the device into your pocket wherever you go to perform a pH test. Also comes with a handy storage case and 3 buffer solution packets dedicated to solution calibration Tips: Please exercise caution when using the glass probe as this is a little fragile Be sure to wipe gently with a clean, soft cloth when you're done before resealing Package Contents: 1 x pH -meter