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EML
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SW120R
Rain Detector

Picture
Applications
Features and Benefits
- Building Management Systems (BMS)
- Urban meteorology
- Low-Cost Hydro-Met stations
- Weather Hobbyist
- Flood warning systems
- Low cost
- Small and compact
- Simple on/off output
- Internal resistive heater to dry the probe quickly
The SW120R Rain Detector from EML

The SW120R rain sensor works on the principle of conduction between three electrodes on a flat surface. To create a simple low cost solution to detect when it is raining.  Beneath the sensing surface is embedded a 100Ω, 5-watt ceramic resistor that can be used to heat the sensor. Passing 120mA current through the resistor raises the temperature of the sensing surface approximately 20-30°C above air temperature.
Operation of the heater will also stimulate rapid drying of the sensor surface giving a closer approximation of the duration of rainfall.


Datasheet:


SW120R Datasheet
File Size: 2100 kb
File Type: pdf
Download File


Manual:


SW120R Manual
File Size: 26 kb
File Type: pdf
Download File

© Environmental Measurements Limited (EML)
  • Home
  • About
  • Products
    • Rainfall Hydro Products
    • Wind Products
    • Temp and RH Products
    • Radar Products
    • Compact Weather Products
    • Solar Radiation Products
    • Data Logger and Display Products
    • Retired Products
  • Systems
  • Services
  • News
  • Events
  • Contact
  • Covid-19