3 in 1 Soil Detector Garden Soil Moisture & Humidity PH Measuring Instrument UK
PH Range: 3.5-8PH ( 3.5-7 Acid, 7-8 Alkaline). Step 5: Remove probe from soil and wipe clean after each use. Designed for testing soil, don't use it to test pure water or other liquids. The indicator will not move.