Soil moisture refers to the presence of moisture in the pores of the soil. The amount of water released by drying the soil at 105-110°C is used as the moisture content of the soil. Soil moisture is one of the important indicators for determining soil properties. It is a soil parameter that agricultural workers must understand when they perform activities such as sowing, irrigation, and fertilization.

Soil moisture measurement is generally determined by weighing method, soil moisture sensor method, infrared remote sensing method and so on. The method of measurement is different, and the results are slightly different. Because each measurement method has different accuracy and the measurement steps are different, the results are not necessarily the same. However, it floats within a certain range.

The application of soil moisture sensor is FDR principle, probe length 5.3CM, 3 probes, observe the soil moisture content in the center of the needle as the axis, diameter 7CM, high 7CM range.

Soil moisture sensor technical parameters

1. The measurement frequency is: 100Mhz

2. Measurement parameters: volumetric moisture content

3. Unit: %(m3 /m3)

4 measuring range: 0-100%

5. Measurement accuracy: ±3%

6. Power supply: 3.3V-12V

7. Output signal: 0 ~ 2.0VDC, TTL digital signal

8. Settling time: 2 seconds after power on;

9. Response time: < 1 second;

10. Working current: about 21mA;

11. Sealing material: resin watering, completely waterproof;

12. Cable length: standard is 1.5m

The soil moisture sensor can be used together with soil temperature sensor, soil moisture sensor, soil CO2 sensor, linked to the display, and then through the button, you can easily view the value of each parameter. When the agricultural worker needs to understand the moisture, humidity, or temperature of a piece of soil, a soil moisture tester (a soil moisture sensor is one of the components) can be used for testing.

Figure soil moisture tester

The above figure is a soil moisture tester, in which the black cylinder can be a soil moisture sensor, a soil temperature sensor, a soil moisture sensor, and the like. Can be customized according to your different needs, convenient and simple. The soil moisture tester provides a quick method for measuring soil moisture and other indicators, providing convenience for agricultural workers.

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