Soil Hardness Tester, Hardness Indication Range: 0 ~ 40 mm; 0 ~ 500 Kg/Cm2

Soil hardness tester principle:
This soil hardness tester uses the theoretical value of pressure gauge Kg/Cm2 to directly measure the soil hardness value. 
It is very convenient and accurate to use the soil hardness tester to investigate the water permeability, aeration, and soil properties of large-scale machine operations.

Soil hardness tester method:
1. First to be measured on the surface of the soil leveling, and then insert the tip of the device into the soil until the (mouth) part. 
2. Pull out the soil hardness tester vertically and read the hardness indicator from the table. 
3. Read the measured value is completed, please rotate the slave needle knob, so that the indicator table to zero. 
4. If soil is attached to the inside of the side head, the measured value will become incorrect. Please rotate the (mouth) part counterclockwise to remove the round sleeve. Please clean it and then transfer it to a fixed position to measure again. 
5. Hardness indication range: 0 ~ 40 mm; 0 ~ 500 Kg/Cm2