InkBird ITC-308 is a ready-to-use device that will check the temperature itself and react accordingly if necessary. Just set the desired temperature and deviation from this temperature to plus and minus degrees Celsius on the display. Then we have two electrical sockets: COOLING we connect the np cooling device to this socket. : pump connected to a spiral radiator immersed in a liquid. HEATING we connect the heater to this socket The device will control the temperature on an ongoing basis and, if necessary, start heating or cooling by transferring the voltage to the appropriate socket. Properties: two EU sockets: for cooling (COOLING) and heating (HEATING) devices, alarm in case of sensor failure and exceeding the set temperature, temperature control range: -50 to 99C (the ability to set the temperature with an accuracy of 0.1C), Accuracy: 1C (-50 to 70C). range of possibility to set the temperature deviation 15C (factory set the device to 2C). length of power cable: 1,5 m, cable length with probe: 2 m, length of power cable (output): 0,2m, power supply: 10 A (max. ) 240 V. Input voltage 100240VAC, 50Hz/60Hz. Output voltage max. 10 A, 100 V 240 V AC