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Home / Computer Hardware, Monitors & Peripherals / Risym 12V Soil Moisture Sensor Relay Control Module Activates Below Humidity Threshold Auto Watering
Computer Hardware, Monitors & Peripherals

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Operating Voltage 12V DC
Output Signal Digital Switch Output (0/1)
Probe Material Nickel-Plated Steel
Module Dimensions 32mm x 14mm x 10mm
Probe Length 60mm
Relay Capacity 250V AC 10A / 30V DC 10A
Power Consumption Approx 20mA
Indicator LEDs Power and Status Indicators
Operating Temperature -10°C to 50°C
Interface Type 3-pin PH2.0 Connector

5 reviews

A

Anonymous

Apr 05, 2026

Rating: 5/5

Perfect for my greenhouse

This sensor triggers my water pump exactly when needed. Very reliable relay.

A

Anonymous

Mar 31, 2026

Rating: 4/5

Good module, needs calibration

Works well once you adjust the potentiometer. Instructions could be clearer.

A

Anonymous

Mar 26, 2026

Rating: 5/5

Easy integration

Connected easily to my controller. Relay clicks loudly but works.

A

Anonymous

Mar 08, 2026

Rating: 5/5

Saved my plants

Automatic watering works great. No more dry soil during vacation.

A

Anonymous

Feb 22, 2026

Rating: 3/5

Probe corroded eventually

Module works fine but the probe rusted after 6 months in soil.

5 FAQ

Q: What power supply do you recommend?

A: We recommend a stable 12V DC power supply with at least 1A current capacity.

Q: Can this connect directly to Arduino?

A: Yes, but ensure voltage levels match. The module runs on 12V, so logic level shifting may be needed for 5V microcontrollers.

Q: What is the maximum load for the relay?

A: The relay supports up to 10A at 250V AC or 30V DC. Please do not exceed these ratings.

Q: How do I adjust the sensitivity?

A: There is a blue potentiometer on the module. Turn it clockwise or counter-clockwise to set the threshold.

Q: Is the electronic module waterproof?

A: No, only the probe is designed for soil insertion. Keep the circuit board dry.

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