Temperature Controller WS1209

SKU: 00000009


In stock



Supply voltage: DC 12V

Current : 65mA
Output voltage: DC 12V
Output power: 10A relay
Sensor: NTC (10K 0.5{08329466a8fa98dda17f984a46434f5e2d713773303ad0376fcadf73623f2827}) Waterproof Sensor
Environmental requirements: -10~60℃, Humidity 20{08329466a8fa98dda17f984a46434f5e2d713773303ad0376fcadf73623f2827}~85{08329466a8fa98dda17f984a46434f5e2d713773303ad0376fcadf73623f2827}
Dimensions: 48 * 40mm
Cable length: About 52 cm
Temperature control mode: ON / OFF
Temperature range: -50~+110°C
Control accuracy: 0.1°C
Hysteresis accuracy: 0.1°C
Refresh rate: 0.5S
High temperature protection: 0~110°C

Resolution: From-9.9~99.9 it is 0.1°C – other temperatures it is 1°C

Display Type: 0.28-inch digital tube


Hold set button to enter the menu

PO Heating or Cooling ?

Here we set the temperature controller operation mode C- cooling , H-heating.

If you set Cooling (C) temperature controller will be activated relay when temperature falls to the setpoint.

If you set Heating (H) temperature controller will be activated relay when temperature rises to setpoint.


P1 – Hysteresis or Return difference set or ON/OFF band

This is a very useful feature for precise operation of the temperature controller. For example, if you set the value of 1C and the desired temperature on the thermostat 20C, relay will be deactivated at 21C (20C+1C). The relay is activated again when the temperature drops to 20C. So your control will be between 20-21 Degree C


P2 – Highest temperature limit

You can set a maximum temperature limit, less than 110 degrees. No need to change this.

P3 – Lowest temperature limit

You can set minimum temperature limit more as -50 degrees. No need to change this.


P4- Temperature correct or calibration

Very good feature that lets you set your thermostat by certified accurate thermometer.

Calibration allows you to adjust the temperature in 0.1 increments.

P5-Delay starting time

In this step, you set the relay delay in minute’s 1-10 min. If you set 1min, relay is activated until one minute after reaching the set temperature.

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