1. Function The external temperature detector can detect the temperature setting to start and stop the temperature cycle timing, start and stop time, and the timing switch is widely used in intelligent control, such as carbon heating, aquaculture, greenhouse, home life and other places. 2. Technical parameters Voltage 110V~230V AC 50Hz/60HzMax Load: 16A(2) 3680W.u , (15A for US type) Temperature range: -40~120C Accuracy: +/- 1% Timing accuracy: MAX 10 minutes temperature range : -40~120COpen circuit (or less than -40C), the first line of the screen flashes to display E1, -40~-45C, displays -40C short circuit (or greater than 120C), the first line of the screen flashes to display E2 , 121-129C shows that 120C is lower than -10C, or higher than 100C, no numerical value is displayed after the decimal point in cooling mode, start temperature stop temperature heating mode, start temperature stop temperature 3. Mode button press mode. LCD display: temperature control mode timing mode F01-F04F01 cycle timing mode, start time (ON) / stop time (OFF) cycle timing. F02 Countdown ON mode, now Ti.s OFF, delay (start time) ONF03 Countdown OFF mode, now Ti.s ON, delay(stop time) OFF, countdown completed, turn off output to exit operation F04 Count down ON Countdown OFF mode, now Ti.s OFF, delay(start time) ON, delay (stop time) OFF after start, stop time countdown is over, turn off output to exit operation Correction range: -9.9~9.9C long press SET for 5 seconds to automatically exit,