DC12V Thermostat Controller / Thermometer - W1209 Temperature Controller
The W1209 is an affordable, reliable 12V digital thermostat with an NTC temperature sensor and an output relay, ideal for controlling cooling or heating in refrigerators, heat chambers, radiators, fans, incubators and DIY applications.
Key Benefits
- Power supply: DC 12V
- Operation: Heating or cooling control via relay
- LED display: Real-time temperature readout
- Setpoint & hysteresis adjustment: Stable control without frequent switching
- NTC sensor: Reliable measurement for everyday use
Typical Applications
- Refrigerators & cold rooms
- Heat chambers & radiators
- Incubators, terrariums, aquariums*
- DIY automation in panels or control boxes
Technical Specifications
| Power input |
DC 12V |
| Sensor |
NTC thermistor |
| Output |
ON / OFF relay |
| Display |
LED Display |
Note: For high-power loads we recommend using an external contactor.
Package Contents
- 1× W1209 thermostat (DC 12V)
- 1× NTC temperature sensor with cable