Features Integrated Measuring Sensor: The module comes with an integrated measuring sensor, providing accurate temperature readings for precise control. Customizable Control Mode: You have the flexibility to set the control mode for automatic temperature regulation, enhancing convenience and efficiency. Adaptive Cooling and Heating Modes: The module features high and low-temperature start-up modes, ensuring effective cooling and heating operations based on the set temperature values. Reliable Working Status Indication: Equipped with an indicating light, the module provides clear visual feedback on the working condition, allowing for easy monitoring and maintenance. Wide Voltage Compatibility: Operates efficiently within a DC9~15V range, providing versatility and compatibility with various power sources. 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.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. 2. Low temperature start-heating mode: When setting the starting temperature value betweenstop 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. For example, the setting s Package List 1 x Thermostat Module 1 x Measuring Sensor