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 Non-Contact Digital Temperature Thermometer -58

Non-Contact Digital Temperature Thermometer -58 to 716°F (-50 to 380°C)

beautiful and practical

E26 to E26 Lamp Bulb Socket Extension

Side elastic design for multifarious wearable interphone sheath

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 Non-Contact Digital Temperature Thermometer -58PH 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