Item Type:Thermostat Module_x000D_ Temperature Measuring Range:-9~99_x000D_ Control Accuracy:1_x000D_ refresh rate:0.5S_x000D_ Working Temperature:-10~60_x000D_ Working Humidity:20~85%_x000D_ Measuring Input:NTC(3950-10K 1%)Waterproof Sensor_x000D_ Temperature Measuring Accuracy:1_x000D_ Setting Range:-9~99_x000D_ Input Voltage:DC9~15V_x000D_ Size:78 x 51mm / 3.07 x 2.01in _x000D_ Output:Relay Output,Capacity 12V10A_x000D_ Start indicator: The START (red) indicator is on, indicating that the relay is closed and the device is working._x000D_ Stop indicator: STOP (green) indicator is on, indicating that the relay is disconnected and the device stops working._x000D_ 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._x000D_ _x000D_ Button:_x000D_ START " sets the starting temperature;_x000D_ STOP " sets the stop temperature_x000D_ _x000D_ Mode introduction:_x000D_ 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.For example: set the starting temperature to 30 C, the stopping temperature is 25 C, when the detected temperature value 30 C, the relay is closed, the start indicator (red) is on; when the detected temperature value is 25 C, the relay is off, stop indication The light (green) is on._x000D_ 2. Low temperature start-heating mode: When setting the starting temperature value