Description ;Function External temperature detector can detect temperature Set start and stop temperature < p>Cycle timing, start and stop time, timer switch. It is widely used in intelligent control, such as carbon heating, aquaculture, greenhouse, living home and other places. Technical parameters Voltage 110V~230V AC 50Hz/60Hz Maximum load: 16A(2) 3680W.u, (15A for US type) Temperature range: -40~120C Accuracy +/- 1% Time accuracy: MAX 10 minutes Temperature range : -40~120C Open circuit (or lower than -40C), the first line of the screen displays ''E1'' flashing, -40~-45C, display -40C Short circuit (or more than 120C), the first line of the screen flashes the display ''E2'', 121-129C, display 120C Less than - 10C, or greater than 100C, the value is not displayed after the decimal point. Refrigeration mode, leaving temperature &gt; Stop temperature Heating mode, start temperature Mode button Press MODE. LCD display: temperature regulation mode Programming mode F01-F04 F01 Cycle timer mode, cycle timer start time (ON)/stop time (OFF). F02 Countdown mode ON, now Ti.s OFF, delayed (start time) ON F03 Countdown mode OFF, now Ti.s ON, delayed (stop time) OFF , end of countdown, stop output and exit execution. F04 Count down ON Count down OFF mode, now Ti.s OFF, delayed(start time) ON, After starting delayed ( Stop time )OFF, Stop the time to finish the countdown, close out the output and exit the operation. Temperature correction function Long press the mode button on electricity, temperature calibration in real time after 2 seconds. Real time temperature correction range: -9.9~9.9C Long press the SET button for 5 seconds to automatically exit, do not save changes. Long press MODE button to exit, save temperature correction change. ;Lock lock protection function 'screen ;Press the RESET button to restore the screen to o