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W1209 Temperature Thermostat Controller

W1209 – Manual Language En

W1209 – Wiring Details

  • Working in Both Heating and Cooling Modes
  • Temperature range :-50-110 ℃
  • Best For Incubators
  • Calibration Feature Available
  • Multiple Settings
  • Accurate Temperature
  • 12V Dc input Voltage



Temperature range :-50-110 ℃< br> Dimensions: 48.5 * 40mm
Temperature control mode: ON / OFF
Control accuracy: 0.1 ℃
Hysteresis accuracy: 0.1℃
Refresh rate: 0.5S
High temperature protection: 0-110℃
Supply voltage: DC 12V
Static current: ≤ 35MA, attract current ≤ 65MA
Output voltage: DC 12V
Output power: 20A relay
Measurement input: NTC (10K 0.5%) Waterproof Sensor
Environmental requirements: -10 ~ 60 ℃ ,Humidity 20% -85%
Resolution:When temperature is 0.1℃, the resolution is -9.9~99.9, other temperature segment is 1℃

How to use:

Connect the power supply and the load, you can supply to the controller.
It displayed as a measured temperature.
Press the SET button, the display flashes the temperature;
Press – to set the desired temperature;
After setting press SET to confirm return;
The controller automatically performs the relay by setting off!
Lights, LED status descriptions:
Indicator: Off The relay is switched off, Always indicate the relay is closed.
LED: Shows LL is the sensor open, showing HH is out of range, the thermostat will be forced to close the relay, the display — as high temperature protection.
P0 :Cooling / Heating; Range: C/H; Default: C
P1 :Hysteresis Setting; Range:0.1-15; Default: 2
P2 :Highest Setting Limit; Range:110; Default: 110
P3: Lowest setting Limit; Range:-50; Default: -50
P4 :Temperature Correction; Range:-7-7°c; Default: 0°c
P5: Delay Start Time; Range:0-10 Minute; Default: 0
P6: High temperature alarm; Range:0-110; Default: Off
When the Thermostat is power off, long press “- or +”, you can restore the factory settings.

Package Included:

1 x Digital thermostat Temperature Control Switch 12V + sensor