3 Review(s)

W1209 thermostat module has a temperature sensor, keys, LED display, relay and requires DC 12V power supply. It is an affordable, good quality thermostat controller. Thermostats are devices that sense the temperature of a system so that the temperature is maintained at the desired set point or near to it. NTC temperature sensor allows the module to intelligently control varied electrical devices based on the temperature. The relay can operate at voltages up to a maximum of 240V AC at 5A or 14V DC at 10A to power on. The temperature is displayed in degree centigrade and with the help of 7-segment display and the relay, the state is displayed with the help of the LED present on the W1209 module. Specification:- Temperature Control Range: -50 ~ 110°C, Resolution at -9.9 to 99.9: 0.1°C, Resolution at all other temperatures: 1°C, Control Accuracy: 0.1°C, Refresh Rate: 0.5 Seconds, Input Power (DC): 12V, Waterproof Sensor: 0.5M, Output: 1 Channel Relay Output, Capacity: 10A The W1209 is an incredibly low cost yet highly functional thermostat controller. With this module, you can intelligently control power to most types of electrical device based on the temperature sensed by the included high accuracy NTC temperature sensor. Although this module has an embedded microcontroller no programming knowledge is required. 3 tactile switches allow for configuring various parameters including on & off trigger temperatures. The onboard relay can switch up to a maximum of 240V AC at 5A or 14V DC at 10A. The current temperature is displayed in degrees Centigrade via its 3 digit seven segment display and the current relay state by an on-board LED. Application method: When the power supply and equipment are connected, power can be supplied to the controller. At this time, it is displayed as measuring temperature. Press SET key once, and the display temperature flashes. The output of the thermostat is 20A relay, which meets various high-power loads. When the control circuit is connected, power can be supplied to the thermostat. At this time, the display shows the ambient temperature. Indicator light, digital tube and buzzer status description: Indicator light: flicker indicates start delay of refrigeration or heating, and constant light means the relay is closed. Digital tube: display LL opens the way for the sensor, please connect the sensor according to the instructions; It is shown that HH is beyond the measuring range and the thermostat will forcibly disconnect the relay. Display -- -- alarm for high temperature.