Digital Thermostat Module with Relay - XH-W1209

With this module you can switch a relay automatically based on the temperature.
With the SET, + and buttons you can set the desired temperature. Everything is controlled by the built-in microcontroller.

We also sell a housing for this thermostat: Enclosure Digital Thermostat Module with Relay XH-W1209.

Specifications:

• Voltage: 12V DC
• Power consumption: <35mA (idle), <65mA (relay switched)
• Voltage relay (max): 30V
• Current relay (max): 10A
• Temperature range: -50°C - 110°C
• NTC type: 10K 0.5%
• NTC connector: JST-XH
• Connection 12V: +12V and GND  (screw terminal)
• Connection of switching wire via relay: K0 and K1 (screw terminal)
• Dimensions: 48.5 x 40.1 x 15.8mm
• Module type: XH-WH1209

See the following page for more information: Cheap 12V temperature controller XH-W1209 with display and probe review
Note: Setting the hysteresis may work slightly differently than stated on this page. The instructions state that in cooling mode the relay switches at the set temperature and switches off again when the temperature falls below the set temperature minus the hysteresis. However, it may also be the case that the module only switches on at the set temperature plus the hysteresis and switches off at the set temperature. The same can happen in heating mode, then the module switches on at the set temperature minus the hysteresis and off again at the set temperature.

Note: This module can be supplied with STM8S003F3P6 microcontroller or with NuvoTon N76E003AT20.

Note: The relay is (due to the PCB design) not suitable for high voltages such as 230V.