Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 12V DC |
| Sensor Type | Resistive Soil Moisture Probe |
| Relay Capacity | 10A 250VAC / 10A 30VDC |
| Adjustment Method | Potentiometer for Threshold Sensitivity |
| Indicator Lights | Power LED and Relay Status LED |
| Probe Material | Nickel-Plated Copper |
| Cable Length | Approx. 30cm (Sensor to Module) |
| Mounting Holes | 4x 3mm Diameter |
| Application | Automatic Garden Irrigation & Plant Care |
| Package Includes | 1x Control Module, 1x Soil Probe, 1x Screw Terminal Block |
Anonymous
Mar 20, 2026
Rating: 5/5
Saved my vacation plants!
I set this up before going on a two-week trip. It activated the drip system only when needed. Came back to healthy plants. Highly recommend for anyone needing reliable auto-watering.
Anonymous
Mar 16, 2026
Rating: 5/5
Excellent build quality
The PCB looks clean and the components seem durable. I've been running it outdoors in a weatherproof box for a month with zero failures. Great purchase for the price.
Anonymous
Mar 13, 2026
Rating: 4/5
Works well after calibration
Took a few minutes to get the sensitivity right for my specific soil mix, but once set, it has been flawless. Make sure to test it in dry and wet soil before final installation.
Anonymous
Mar 07, 2026
Rating: 5/5
Robust relay switching
The relay clicks loudly but clearly, indicating a strong connection. It handles my 12V solenoid valve without any issues. The threshold dial makes calibration simple.
Anonymous
Mar 06, 2026
Rating: 5/5
Perfect for my greenhouse automation
This module works exactly as described. I connected it to a small 12V water pump, and the sensitivity adjustment is very precise. It keeps my tomato plants happy without overwatering.
Anonymous
Mar 04, 2026
Rating: 4/5
Good value, easy to wire
Very straightforward setup. The screw terminals are solid. I deducted one star because the probe cables could be a bit longer for larger pots, but overall a great little device.
Q: Does this come with a power adapter?
A: No, the package includes the control module and the soil sensor probe only. You will need to provide your own 12V DC power supply separately.
Q: Can I connect multiple sensors to one module?
A: This module is designed for a single sensor input. Connecting multiple probes in parallel may give inaccurate readings due to varying resistance across different soil locations.
Q: How do I adjust the moisture threshold?
A: There is a blue potentiometer (dial) on the board. Turn it clockwise to increase sensitivity (activate in drier soil) or counter-clockwise to decrease it. Test with dry and wet soil to find your sweet spot.
Q: Can this module directly control a 24V water pump?
A: No, this specific model is designed for 12V DC input and output control. Using a 24V pump may damage the relay or the circuit. Please ensure your pump matches the 12V specification.
Q: Is the soil probe corrosion resistant?
A: The probe is nickel-plated to resist corrosion, but prolonged exposure to very acidic soil or fertilizer runoff may eventually degrade it. We recommend checking it periodically.
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