Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Operating Voltage | 5V DC |
| Sensor Pad Size | 160mm x 100mm |
| Output Signal | Digital Switch Output (0 and 1) |
| Relay Contact Capacity | 250VAC 10A / 30VDC 10A |
| PCB Material | FR-4 Double Sided |
| Working Temperature | -20°C to 70°C |
| Sensitivity Control | Adjustable Potentiometer |
| Interface Type | PH2.0-3Pin Connector |
| Module Weight | 45 grams |
| Package Contents | 1x Rain Sensor Board, 1x Relay Module, 1x Connection Cable |
Anonymous
Apr 15, 2026
Rating: 5/5
Exactly what I needed
Used this to close my skylight automatically. The large area sensor detects even light drizzle. Shipping was fast too.
Anonymous
Apr 10, 2026
Rating: 3/5
Relay is a bit loud
Functionality is fine, but the mechanical click of the relay is quite loud if you are using this indoors. Great for outdoor use though.
Anonymous
Apr 02, 2026
Rating: 5/5
Perfect for my smart home setup
Works flawlessly with my Arduino project. The relay triggers instantly when water hits the sensor. Highly recommend for automation beginners.
Anonymous
Feb 19, 2026
Rating: 5/5
Reliable and durable
Been using this outdoors under a small shelter for months. No corrosion on the contacts yet. The 5V relay is very convenient.
Anonymous
Feb 17, 2026
Rating: 4/5
Good sensor, needs calibration
The detection is accurate but I had to spend some time adjusting the potentiometer to avoid false alarms from humidity. Otherwise solid build.
Q: Can I extend the cable between the sensor and module?
A: Yes, you can extend the cable, but keep it under 5 meters to prevent signal loss or interference.
Q: What is the maximum load for the relay?
A: The relay can handle up to 250VAC at 10A or 30VDC at 10A. Please do not exceed these ratings.
Q: Is this compatible with Raspberry Pi GPIO?
A: Yes, but ensure you use the 3.3V compatible output or a level shifter since the module operates at 5V.
Q: Does it come with screws for mounting?
A: The package includes the modules and cable. Mounting screws are not included, but the PCB has standard mounting holes.
Q: Is the sensor board fully waterproof?
A: The sensor pad is designed for water exposure, but the electronic components on the back should be protected from direct rain.
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