SUNZEAL pH Meter with Automatic Calibration, Digital pH Tester, Readings are Quick and Accurate(Blue)

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About SUNZEAL PH Meter With Automatic

Why is Sunzeal pH Meter Your Best Choice? 1.Sensitive and easy to use, just wait a few seconds and reading is stable. 2.SOZEAL pH tester features a green Backlit LCD display.Don't worry about seeing the displayed value when there is insufficient light. 3.Small, simple, it's very portable, accurate and easy to use. No need to work with those annoying color charts and test strips. Specifications: Measure range: 0.00 - 14.00PH Resolution: 0.01PH Accuracy: ±0.01 PH (at 25℃) Power Supply: 2*1.5V (LR44 Included) Operating Temperature: 0℃ - 80℃ (32℉ - 176℉) Note: Calibration is required in the following conditions. *Lengthy periods of inactivity. *Very frequent use. ***The testing accuracy requirement is very high. *The “CAL” key was pushed and electrode exposed to air for extended period of time. Calibration: 1. Turn on the pH meter. 2. Dissolve each buffer solution in 250 ml of distilled water. 3.Immerse the electrode into the pH 6.86 solution.(under the temperature of 25℃) 4.Press the “CAL”(calibration) button for 5 seconds and release. *Display screen will start flashing “6.86”. *Wait it until the display screen stops flashing. *Rinse the electrode with distilled water and make it dry with filter paper. 5.Repeat the above steps with 4.01 pH buffer powder . Package Include: pH Tester *1 Buffer Powder *4 Instruction Manual *1