?Application?Fit for glass containers, fish tank, snake tank, aquaculture, greenhouse, seed germination, air conditioner, refrigerator, incubator, heating lamp/mat, carbon crystal heater, etc. ?Display Modes? F01~F04 modes for cycle timing and countdown: F01 Cycle Timer mode; F02 Countdown ON mode, F03 Countdown OFF mode, F04 Countdown ON and Countdown OFF mode. You can choose F01 mode to control the device to work in cycles, or choose F02~F04 modes to countdown to turn on or turn off the device. Set range: 0~99 hours 59 minutes. Please note that temperature control function and timing function cannot be used at the same time. ?LCD Display?The LCD display can display temperature control mode and 4 timing control modes F01-F04. And with temperature correction function, screen lock protection, memory function (all current settings will be saved after power off). Different numbers and patterns are clearly visible. ?Timing Modes?Cycle or countdown timer. You can set the start/stop time in minutes (range: 0-59 minutes) and hours (range: 0-99 hours). Time accuracy: MAX 10 minutes. Maximum load: 16A(2) 3680W.µ. ?Temperature Range?This pluggable temperature controller socket will automatically switch heating and cooling mode and control the heating/cooling devices to work. Temperature range: -40?~120?, Power supply: 250V AC; Output: Max 16A/230V.temperature control accuracy: ±1%.