XD-W2308 DIY Digital Thermostat Controller, DC 12V, Blue LED
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Prices updated: 13 Oct 2026
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About this product
A DIY digital thermostat controller powered by 12V DC, with adjustable setpoint, cooling or heating mode, hysteresis, temperature calibration and high-temperature alarm. It switches a relay to turn a cooler or heater on and off, and has a blue LED indicator. Suited to temperature control projects.
Specifications
- Supply voltage
- 12 V DC
- Working modes
- Cooling or heating
- Hysteresis
- Adjustable
- Temperature calibration
- Yes, with correction value
- Output
- Relay
- Delay start
- Yes
- High-temperature alarm
- Yes
Frequently asked questions
How does the hysteresis setting work?
The listing gives an example: with an ambient temperature of 30 °C and a setpoint of 25 °C, a 2 °C hysteresis makes the cooler switch off at 23 °C, and it switches back on when the temperature rises to 25 °C.
How do I wire the relay output to a cooler or heater?
The listing does not include a terminal diagram. Check the labelled terminals and the product manual before connecting, and treat any mains-powered load with care.
