??????? ????????? ? Digital Temperature Controller W3230 DC 12V 24V 220V LED Digital Temperature Controller Thermostat Switch Sensor Meter-12V-

Features: 100% brand new and high quality. 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. Specifications: 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