PH Meter for Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium (Yellow) Yellow sold2024 You only need to flip

You only need to flip the grinder and it will start working immediately due to gravity induction

Separate power source needed

[Audio&Charging]: This USB C to 3

Spring Clips for Crafts

PH Meter for Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium (Yellow) Yellow sold2024 You only need to flipPH Meter for Water Hydroponics Digital PH Tester Pen 0. 01 High Accuracy Pocket Size with 0 14 PH Measurement Range for Household Drinking, Pool and Aquarium (Yellow) PH tester usage related issues: When the PH meter is turned on in the air, the value jumps irregularly, which is a normal phenomenon. The value in the air cannot be used as a reference. When measuring the water with the PH meter, it needs to be stirred gently (to remove the bubbles