Features With A Measuring Sensor: The module equipped with a measuring sensor, when the detecting temperature ≥ the stopping temperature, the relay is disconnected and the heating device stops working. Automatic Control: You can set control mode for automatic control, when the detected temperature ≤ stop temperature, the relay is turned off and the refrigeration equipment stops working. High Temperature Start-up Cooling Mode: When setting start temperature value> stop temperature value, when the detected temperature ≥ start temperature, the relay is closed and the refrigeration equipment is working. Low Temperature Start-heating Mode: When setting the starting temperature value, stop temperature value, when the detected temperature ≤ the starting temperature, the relay is closed and the heating device is working; Wide Application: With indicating light to indicate the working condition, is widely used in temperature detection and control of HVAC, dehumidifier, test equipment, automobile, automatic control, weather station, humidity regulator and other related products. Specification: Item Type:Thermostat Module Temperature Measuring Range:-9~99℃ Control Accuracy:1℃ refresh rate:0.5S Working Temperature:-10~60℃ Working Humidity:20~85% Measuring Input:NTC(3950-10K 1%)Waterproof Sensor Temperature Measuring Accuracy:1℃ Setting Range:-9~99℃ Input Voltage:DC9~15V Size:78 x 51mm / 3.07 x 2.01in Output:Relay Output,Capacity 12V10A Start indicator: The START (red) indicator is on, indicating that the relay is closed and the device is working. Stop indicator: STOP (green) indicator is on, indicating that the relay is disconnected and the device stops working. Digital tube: The middle red digital tube shows the current detected temperature, the left green digital tube is the set start temperature, and the right green digital tube is the set stop temperature. Button: START "△▽" sets the starting temperature; STOP "△▽" sets the stop temperature Mode introduction: 1. High temperature start-up cooling mode: When setting start temperature value> stop temperature value, when the detection temperature ≥ start temperature, the relay is closed, the refrigeration equipment works; when the detection temperature ≤ stop temperature, the relay is disconnected, and the refrigeration equipment stops working. 2. Low temperature start-heating mode: When setting the starting temperature value <stop temperature value, when the detected temperature ≤ the starting temperature, the relay is closed, the heating device works; when the detecting temperature ≥ the stopping temperature, the relay is disconnected, the heating device stop working. Package List: 1 x Thermostat Module 1 x Measuring Sensor Package List 1 x Thermostat Module 1 x Measuring Sensor