W1209 Digital Temperature Controller Thermostat Module

W1209 digital temperature controller module is a low cost and highly functional thermostat module which is widely used in automation projects. W1209 thermostat module includes a seven segment LED display and a NTC waterproof temperature sensor. There are 3 switches (SET, + and -) on board to set temperature and other parameters like turning on trigger temperature. W1209 module has an integrated microcontroller in it but does not requires  programming knowledge. There is an onboard relay which acts as a switch to the load connected to it. A maximum load of 240V AC at 5A or 14V DC at 10A can be connected to the on board relay. Measurement and control accuracy of the circuit is 0.1° C. Temperature control range for the module is -50° C to 110° C. 0.5 seconds is the refresh rate of the W1209 module. 

TECHNICAL SPECIFICATION