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low voltage DC 12V working voltage
An extra measure of safety and convenience
allowing you to enjoy a comfortable shower experience
Ultra soft and smooth
pH Meter Tester Pen Solder low voltage DC 12V workingDescription: Free Auxiliary Standard Calibration: long press CAL for 5 seconds to enter the calibration mode, and press to select the powder corresponding to 6. 86 and 4. 01to complete the calibration. Likewise, pH meters feature automatic temperature compensation that adjusts for water temperature and water quality, giving a pH reading almost instantly. Simple Operation: Easy to use and calibrate. Just press the "ON" button to get the PH test result
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