Convenience: This pH is tested with an LCD screen, which is clear. It is feasy measurement function and accurate measurement function, waterproof probe detection, users can change through their own easy changes. 2 Design: This pH meter tester can measure the pH and temperature at the same accuracy, 5 seconds to know the quality, water accuracy and faster speed. This is automatically shut down after 4 minutes, there is no action The pH has an automatic calibration function: advanced automatic calibration, no need any type of screwdriver to calibrate the pH, no problem, the pH temperature change, the pH will automatically adjust the temperature between 0 C ~ 60 C. Applicable range: Ideal for home and laboratory pH test, including drinking water, electroforming, boiler water, water in the aquarium, swimming pool, rinsing liquid, photo, water, ground water, aquaculture, processing of food. Pocket Portable: Subtotal pH tester volume, for testing drinking water, swimming pools, aquariums, reverse osmosis systems, spa or water pH. crop water balance. Descriptions: 1.If you are looking for a super accurate and reliable meter, this is the one for you 2. This pH meter is a professional and very reliable measuring device used to test pH level in liquid solution. 3. The pH value tells you when you need to add chlorine to your pool or when your wine or cheese is ready. 4.Compared to other traditional pH meters, the most important features are the automatic temperature calibration to ensure accurate results. Features: Condition: 100% Brand New Measurement Range: PH: 0.00-14.00ph Temperature: 0.1~60 Resolution: PH: 0.01ph Temperature: 0.1 Accuracy: PH: 0.01ph Temperature: 0.5 Automatic temperature compensation: 0 80 -60 Working temperature: 0~60 Power supply: 3*1.5V LR44 button battery (not included) Product size: approx. 183*37*37mm/7.2*1.5*1.5" Package Weight: Approx. 231g Package Included: 1* PH Meter Operation steps: 1.Remove the protective sheath 2.Clean the electrode with distilled water and wipe off the spare water. 3. Press the "ON/OFF" button. Turn on the meter. 4. Immerse the electrode of the pH meter in the solution to test it. 5. Shake the reader lightly, read the data when the digital figure is stabilized. 6. Press the "ON/OFF" button to turn off the instrument. Calibration: 1.Full ph 6.86 standard buffer solution, in clean beakers. 2.Fill 2 beakers, one is used to clean the electrode and the other is used for calibration.