Description This thermostat with timer can automatically control the switch of refrigeration and heating equipment, and has the function of intelligent temperature control and intelligent timing. Features: Heating / cooling Cycle time and countdown Temperature correction Screen lock protection function Memory function: all current settings will be saved after power off Return to factory settings Specification : Temperature range: -20~60 Timer function F01-Cycle timer mode The device works during ON time and stops working during OFF time. It will continue to cycle. For example, set ON=0:05, OFF=0:02, this device will work for 5 minutes and stop working for 2 minutes, then cycle again. F02-CD ON mode The device starts to operate after the CD ON time has elapsed. For example, set CD ON=0:05, the device starts working after 5 minutes. F03-CD OFF mode The device stops working after the end of the CD stoppage time. For example, set CD OFF=0:05, the device works for 5 minutes and stops working permanently after 5 minutes. F03-CD ON/CD OFF mode The device starts working after the CD ON time ends and stops working after the CD OFF time ends. For example, set CD ON=0:02, CD OFF=0:05, the device will start working after 2 minutes, then work for 5 minutes and stop working forever. Widely used for reptile, incubator, terrarium, refrigerator, greenhouse, home brew, vivarium, fermentation, heat mat and other temperature controlled systems. 1 . FunctionThe external temperature detector can detect the temperature , set the opening temperature and closing temperatureand has the functions of cycle timing , timing opening , timing closing and timing switch . It is widely used in intelligentcontrol such as carbon crystal heating , aquaculture , greenhouse , home life and other places2 . Real time temperature range : -40-120 . Open circuit ( Or less than-45 ) The first ow of the screen flashes displaye40-45 display40 Short circuit ( Or more than120 ) The first row of the screen flashes display R2 121-129 display 120 Lower than-10 Or higher than100 It will not display the value behind the decimal point Refrigeration mode , When the setting temperature is higher than the stop temperature , the corresponding icons aredisplayed Heating mode , When setting the starting temperature below the stop temperature is heating mode , display the corresponding Four button : MODE button , SET button , UP button , DOWN button package:1pc