Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | DC 5V - 12V |
| Sensor Type | NTC Thermistor |
| Detection Range | -40°C to 125°C |
| Output Signal | Digital Switch (High/Low) |
| Relay Capacity | Max 10A at 250VAC |
| Adjustment Method | Potentiometer Sensitivity Control |
| Indicator LED | Power and Trigger Status |
| Mounting Hole Diameter | 3.5 mm |
| PCB Dimensions | 32mm x 14mm x 8mm |
| Application | Automotive Cooling, Battery Monitoring |
Anonymous
Mar 27, 2026
Rating: 5/5
Reliable temperature switching
Been using this for three months now to monitor my battery box temperature. It hasn't failed once. The response time is quick enough for safety applications.
Anonymous
Mar 17, 2026
Rating: 5/5
Great for DIY projects
I used this to create an automatic ventilation system for my greenhouse attached to the garage. It's compact, sensitive, and the LED indicator helps visualize when the threshold is crossed.
Anonymous
Mar 16, 2026
Rating: 4/5
Good value but instructions are sparse
The hardware quality is solid and the relay clicks loudly when triggered. However, there were no detailed wiring diagrams included, so I had to look up similar modules online to confirm the pinout.
Anonymous
Mar 15, 2026
Rating: 4/5
Solid component
No complaints about performance. The screw terminals are tight and hold wires securely. Just wish the range adjustment had a bit more fine-tuning resolution.
Anonymous
Mar 13, 2026
Rating: 3/5
Works but gets warm
The sensor functions correctly, but I noticed the board gets slightly warm when the relay is engaged for long periods. Make sure you have some airflow around it if running high loads.
Anonymous
Mar 09, 2026
Rating: 5/5
Perfect for my custom fan controller
This module works exactly as described. I installed it in my project car to trigger the radiator fans when the temperature hits a specific point. The potentiometer makes calibration very easy.
Q: Can this module handle 24V systems?
A: Yes, the input voltage range is DC 5V to 12V for the logic, but the relay contacts can switch up to 250VAC or 30VDC. For a 24V system, ensure your control signal matches the module input or use a voltage divider.
Q: Is the temperature threshold fixed or adjustable?
A: The threshold is fully adjustable using the blue potentiometer on the board. You can set the trigger point anywhere within the sensor's detection range based on your specific needs.
Q: What is the maximum current the relay can switch?
A: The onboard relay is rated for a maximum of 10 Amps at 250V AC. For DC loads, we recommend staying under 5A to ensure longevity and prevent contact welding.
Q: Does this come with the thermistor probe attached?
A: Yes, the NTC thermistor probe is pre-soldered and included with the module. The cable length is approximately 20cm.
Q: Can I use this to trigger a warning light instead of a fan?
A: Absolutely. Since the output is a simple digital switch (Open/Close), you can connect it to any load within the relay's rating, including warning LEDs, buzzers, or small motors.
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