pH Meter Tester Pen Solder Check the silicone ring of

Check the silicone ring of the foamer to tighten the foamer and grab the head

Package Content: The package includes 1pc electric drill plate cutter (electric drill is not included)

please allow slight errors on size

Both Functional and sturdy

low voltage DC 12V working voltage

pH Meter Tester Pen Solder Check the silicone ring ofDescription: 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