A
Anonymous
Apr 11, 2026
Rating: 5/5
Easy to wire
Clear labels for VCC, GND, and OUT. Very beginner friendly for my first automation project.
Description
Large Area Double-Sided Raindrop Detection Module Rain Controller Relay Rain Sensor
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Operating Voltage | DC 3.3V to 5V |
| Output Type | Digital TTL Output |
| Sensor Design | Dual-Sided Nickel Coated Lines |
| Relay Load | 250VAC 10A or 30VDC 10A |
| PCB Dimensions | 65mm x 20mm x 15mm |
| Mounting Hole | 3.5mm Diameter |
| Operating Temperature | -20°C to 70°C |
| Sensitivity Control | Adjustable Potentiometer |
| LED Indicators | Power and Signal Status |
| Connector Type | 3-Pin PH2.0 Interface |
5 reviews
A
Anonymous
Mar 23, 2026
Rating: 4/5
Solid module
Relay is sturdy and handles the load. Wish it came with screw terminals instead of pins for permanent install.
A
Anonymous
Mar 07, 2026
Rating: 5/5
Perfect for Smart Garden
Works flawlessly with my ESP8266. The relay clicks loudly but works well for triggering my irrigation system.
A
Anonymous
Feb 18, 2026
Rating: 4/5
Good value
Sensitivity needed adjustment out of the box using the potentiometer. Otherwise great module for the price.
A
Anonymous
Feb 09, 2026
Rating: 5/5
Reliable detection
Caught the rain immediately during a storm. Dual sides help with wind direction so no blind spots.
5 FAQ
Q: Can this handle 12V logic inputs?
A: The sensor logic is designed for 5V, but can work with 3.3V. Please use a level shifter for 12V logic systems.
Q: Is the sensor board fully waterproof?
A: The sensor lines are coated for water detection, but the electronic circuitry should be housed to protect from direct rain.
Q: What is the max load for the relay?
A: The relay supports up to 10A at 250VAC or 30VDC. Do not exceed these ratings.
Q: How do I adjust sensitivity?
A: Use the blue potentiometer on the back of the PCB. Turn clockwise to increase sensitivity.
Q: Is it compatible with Raspberry Pi?
A: Yes, it is compatible. Ensure you use the 3.3V compatible output or a level converter if needed.
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