Just insert the sensor into the soil and you can instantly see the water state.]

Simple type soil moisture measuring device DM-18R

Measurement Method : Electrical Resistance Table Display: 3-1/2 digit LED (3 digits of temperature display) Display Range: 12.1% to 58.0% and below 12.1% "L", 58.1% or higher "H" Display Temperature Degree: -10°C to 90°C; Measurement Resistance Range: 8.2KΩ (20°C). Function: 0.1 Power source: AA manganese batteries x 2, Function: Average value display, temperature automatic correction, inspection line change, communication function dimensions (main unit): 6.1 x 2.8 x 1.2 inches (155 x 70 x 30 mm); Weight: 5.7 oz (170 g); Product contents: AA manganese batteries x 2, communication cable, carrying case.

Note:

This unit is designed to measure the resistance between the two poles of the sensor and display as a temporary moisture value.

Moisture display values are not absolutely indestructible.As such, it displays relatively with the electrical resistance value, so if there is a conductive substance (salt, metal, etc.) in the sample material, there is a difference between the actual water value, but if the percentage of the contents of the measurement is uniform and small (where it does not affect the water value), you can use it for comparison inspection, etc.