Rain sensor including probe, module with relay, 5V power supply

Rain sensor with output to relay contacts. Two-state mode with adjustable switching sensitivity.


Technical parameters:

- used comparator: LM393
- power supply: 5 V DC
- output: relay 5V, contacts 250VAC / 10A
- LEDs to indicate power and active output
- PCB size: 50 × 26 mm
- probe: 54 × 39 mm
- guide: 20 cm

During continuous measurement, the service life of the probe is greatly shortened, since the electrolytic reaction takes place here. For optimal probe and battery life, program periodic measurements with immediate result evaluation.

The product is not a stand-alone unit, it requires professional installation.