(1) Setting key: used for switching between normal operation and temperature setting. Press the setting key, the digital tube flashes and enters the temperature setting state (the heating and refrigerating temperatures are set separately, not sharing the same temperature setting value). At this time, press the up button or down button to set the temperature until you need the temperature value. Press the setting key again, the digital tube will stop flashing, save the setting temperature and return to normal operation. In the temperature setting state, without pressing any key for 5 seconds, the thermostat will automatically save the current set temperature and return to the running state.
(2) Up button: used to raise the set temperature
In the setting state, press this button once to set the temperature to increase by 1℃. Hold this button to continuously increase the temperature until the upper limit of heating or refrigeration temperature (heating is different from the upper limit of refrigeration temperature).
(3) Down button: used to lower the set temperature
In the setting state, press this button once to set the temperature to be lowered by 1℃. Hold this button and the temperature can be lowered continuously until the lower limit of heating or cooling temperature (heating is different from the lower limit of refrigerating temperature).

Operating mode
Refrigeration: When the control temperature is ≥ set temperature +1℃, turn on the load power supply; when the control temperature is ≤ set temperature -1℃, turn off the load power supply. There is a 3-minute delay to power on each time the machine is switched off.
Heating: When the control temperature is ≥ set temperature +1℃, cut off the load power supply; when the control temperature is ≤ set temperature -1℃, turn on the load power supply.

Temperature Range:-35 ~ 55℃.