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Home / Computer Hardware, Monitors & Peripherals / Large Area Double-Sided Raindrop Detection Module Rain Controller Relay Rain Sensor
Computer Hardware, Monitors & Peripherals

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

Apr 11, 2026

Rating: 5/5

Easy to wire

Clear labels for VCC, GND, and OUT. Very beginner friendly for my first automation project.

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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