Features Precise Temperature Control: The W3230 LED Digital Temperature Controller ensures accurate readings, maintaining your desired temperature for optimal performance and reliability Flexible Mode Selection: Easily switch between cooling and heating modes to suit your specific needs, making this controller versatile for various applications Safety Upper/Lower Limits: Set customizable upper and lower temperature limits to prevent accidents and protect your equipment from overheating or freezing Automatic Temperature Regulation: The controller automatically activates the cooling or heating system, ensuring consistent temperature maintenance without manual intervention User-Friendly Calibration: Adjust temperature settings easily to meet your requirements, allowing for personalized accuracy to enhance your overall experience Features: 1、100% and . 2、 Can select cooling or heating working mode. 3、 Set highest/ lowest upper limit temp to avoid accident. 4、 Automatically start cooling or heating for constant temperature. 5、 Temperature calibration, you can calibrate temp according to requirement. Specification: Features: 100% and . Can select cooling or heating working mode. Set highest/ lowest upper limit temp to avoid accident. Automatically start cooling or heating for constant temperature. Temperature calibration, you can calibrate temp according to requirement. High temp alarm, when measure temp reach to the setting temp, controller will alarm. 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 tat 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 tat panel has three keys, keys + keys - SET keys< Package List