RK510-01 Soil Moisture Sensor


RK510-01 is a high accuracy, high sensitivity of soil moisture measuring instrument.The product on the principle of electromagnetic pulse (FDR:Frequency Domain Reflectometry) to measure the dielectric constant of the soil, stainless steel probe is inserted into the soil surface or soil profile to quickly online measurement of soil volumetric moisture content, the method is the most popular method of soil moisture measurement.It can be used permanently embedded in the soil.Soil moisture sensor can be widely applied to the soil moisture monitoring, water-saving irrigation, greenhouse control, fine agriculture, hydrology and meteorology, and other fields, road monitoring.


  • Fast response.
  • Excellent stability.
  • Widely used.
  • High precision.
  • High sensitivity.
  • Simple operation.


Item Technical Specification
Range 0-100%,0-50%,0-30%,
Accuracy ±2%(0-50%)
Output Signal 4-20mA ,0-5V,0-2V,RS485 optional
Response Time <1s
Supply 5VDC, 12-24VDC
Effective measurement area With the center of the probe diameter is 70mm, high 70mm cylinder
Housing ABS
Dimensions Ø50*208mm(probe:Ø4*78mm)
Operating Temperature -30℃-+70℃
Ingress Protection IP67
Storage 10-60℃@20%-90%RH
Probe material 316L  stainless steel

Product Detail

soil humidity sensor with high quality material
product-Rika Sensors-RK510-01 Soil Moisture Sensor-img-6Product Material

product-RK510-01 Soil Moisture Sensor-Rika Sensors-img-7
product-Rika Sensors-img-7 Product working principle

high accuracy soil moisture sensor
product-Rika Sensors-img-7Product function

Installation Mode



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