A
Anonymous
Apr 05, 2026
Rating: 5/5
Perfect for my greenhouse
This sensor triggers my water pump exactly when needed. Very reliable relay.
Description
Tmall 14-Year Established Store Risym Weixin High-Quality Best Seller
Reviews
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
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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