Features High-Quality Brand New: Ensure top-notch quality and reliability for long-term use. Cooling or Heating Mode: Versatile functionality with the option to select cooling or heating working mode based on your specific needs. Temperature Limits Setting: Set upper and lower temperature limits to prevent accidents and ensure safe operation. Automatic Temperature Control: Automatically initiate cooling or heating to maintain a constant temperature, providing convenience and efficiency. Temperature Calibration: Easily calibrate the temperature according to your specific requirements, ensuring and accuracy. Specification: Material: electronic element Voltage:DC 12V/24V /110-220V(Optional) Power:120/240/1500W (Optional) Weight: Approx.48g/1.7oz Package list: 1 x Digital Thermostat Temperature Alarm Controller Sensor Circuit connection: refer to the circuit diagram to connect the power supply and load. At this time, the digital tube (top) displays the actual measured temperature value, and the digital tube (bottom) displays the preset temperature. If the temperature sensor is missing or damaged, the digital tube will display "-- --", and the buyer must check whether the temperature sensor is installed before using it. The temperature control output is a 10A relay, which can meet various high-power loads. Please make sure the circuit is correct. Indicator light, digital tube status: Indicator light: off means the relay is disconnected, and on means the relay is closed Digital tube: display "-- --", 1. Check whether the temperature sensor is missing or damaged 2. High temperature protection of heating mode 3. Low temperature protection in refrigeration mode The relay in protection mode is automatically disconnected. Use of keys: the thermostat panel has three keys, keys + keys - SET keys Key + : fast accumulation of values Key -: to achieve the rapid decline of the value Press Restart: Restart the button Setting key SET: realize the setting temperature setting interface and parameter setting interface of the two-layer interface SET short press digital tube (bottom) to SET the temperature quickly. Default - 20℃and 0℃, 20℃and 40℃, 60℃, 80℃, 100℃, and other data set convenient user quick call. For example: users need to SET 68.8℃, first short press SET to 60℃, and then through the buttons and fine-tune to the corresponding temperature. After setting, wait for 5s to automatically store data in memory. Compared with the first generation of thermostat, the second generat Package List