RK400-13 Radar Rainfall Sensor


RK400-13 is a sensor that uses radar wave technology to detect rainfall. It can distinguish the types and intensity of rain, snow and hail. Compared with the traditional mechanical rain gauge, the detection is more sensitive and fast, and there is no need to worry about the influence of the cover of leaves and other objects on the surface of the detector for rainfall detection, and no need for heating device to prevent icing. There are no moving parts inside the product, which is maintenance-free, small in size and low in energy consumption.


  • Compact size for easy use.
  • Auto-heating function.
  • High accuracy.
  • High accuracy.
  • Stainless steel Construction.
  • Outlet with insect-proof.


Item Specification
Measurement object rain, snow, hail
Measured rainfall intensity 0-200mm/h(rainfall)
Sample interval 1s
Resolution 0.1mm
Precipitation diameter 0.5-5.0mm
Accuracy(2mm/min) ±5% (@Wind speed <5m/s)
Power consumption <2W
Supply 7-24VDC
Output RS485, RS232, SDI-12 optional
Protocol Modbus-RTU (default), NEMA-0183, SDI-12
Operating temperature -30-+70℃
Main material Aluminum Alloy+ ABS/ABS
Weight(unpacked) 0.65kg/0.38kg

Product Detail

Product Dimensions

product-Rika Sensors-img-6
product-Rika Sensors-img-6


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