PHS0011 Soil PH & Moisture Meter
Specification:
Range: pH 3 - 8 pH
Moisture: 1 - 8 

Soil pH value is a very important factor for the quality of crops. Most Crops cannot survive in too acid or too alkaline soil. Get the right pH reading  is very important.
PHS0011 with 30 cm long stem. It can get deeper into soil where a lot of plant roots are. Allows accurate measurement.