- The XH-W1209 12V Digital Temperature Controller Module W/ Display and NTC Waterproof Temperature Sensor is an incredibly low cost yet highly functional thermostat controller.
- With this W1209 thermostat controller, you can intelligently control power to most types of electrical device based on the temperature sensed by the included high accuracy NTC temperature sensor.
- Note: This doesn’t come with case, you need to get W1209 case.
W1209 Digital Temperature Controller Thermostat Module
The W1209 digital temperature controller thermostat module is a small, standalone device that allows you to control the temperature of a system or process using a digital interface. It typically includes a temperature sensor, a control algorithm, and an output mechanism to control the temperature. The W1209 module may have inputs for setting the temperature setpoint and control parameters, as well as outputs for controlling devices such as heating elements or cooling fans. It may also have a display for showing the current temperature, setpoint, and other information. The module is designed to be easily integrated into a larger system or device
How simple would it be for your fan to turn on/off automatically when the temperature rises or falls? Setting a trigger temperature to determine when the fan should turn on or off is all that is required. Utilizing the extremely functional W1209 thermostat, which can assist you in creating such simple yet fantastic home automation!
Also, read our blog W1209 Temperature Controller Setting detailing the variety of W1209 Setting Modes.
Pin Diagram of W1209:

Configurations of W1209 Digital Thermostat
With this W1209 Digital thermostat controller , you can intelligently control power to most types of electrical devices based on the temperature sensed by the included high-accuracy NTC temperature sensor.
Temperature sensors, keys, 7 segment LED display, relays, and a DC 12V power supply are all features of the W1209 thermostat controller. It is a cost-effective thermostat controller of high quality. It requires W1209 case to protect the thermostat controller from any damage,
Thermostats are tools that monitor a system’s temperature to keep it at or close to the desired set point. The module’s NTC temperature sensor enables intelligent temperature-based control of a variety of electrical components. The resistance of an NTC thermistor lowers as temperature rises because of its negative temperature coefficient. Because the W1209 thermostat has an embedded microcontroller built-in, little programming experience is needed. The W1209 has three switches that can be used to set up the different parameters, such as the ON and OFF trigger temperatures. The relay can be turned on at voltages as high as 240V AC at 5A or 14V DC at 10A. The state is displayed with the aid of the LED on the W1209 thermostat, and the temperature is displayed in degrees Celsius with the aid of a 7-segment display and a relay.
- Settings Chart:
- Long press the “SET” button to activate the menu.
- Code Description Range Default Value
- P0 Heat C/H C
- P1 Backlash Set 0.1-15 ( 2)
- P2 Upper Limit 110 ( 110)
- P3 Lower Limit -39 ( -39)
- P4 Correction -7.0 ~( 0 )
- P5 Delay Start Time 0-10 mins( 0)
- P6 High-Temperature Alarm 0-110 (OFF)
- Long pressing +- will reset all values to their default.
Applications:
- To measure on-display temperature
- To turn any application ON/ OFF based on temperature reading ( both AC and DC)
- W1209 100 Egg Incubator
- Digital Temperature Controller with Waterproof Probes for Aquarium Temperature Control
- Indoor Room Temperature Control
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Package Includes:
- 1 x W1209 Digital Temperature Controller Thermostat Module
Specifications:
| Supply Voltage | 12V |
| Accuracy | 0.1°C |
| Static Current | <=35mA |
| Current | <=65mA |
| Humidity | 20 – 85% |
| Temperature Control Range | -50 ~ 110 Celsius |
| Measuring Inputs | NTC10K |
| Cable Length | 0.5 Meter |
| Dimensions | 5 x 4 x 3 cm |
| Weight | 50 grams |


















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