Function: 1. The external temperature detector can detect the temperature. 2. Set the start and stop temperature. 3. Loop timing, start and stop times, timing switch. 4. Widely used in intelligent control, such as carbon heating, aquaculture, greenhouse, home life and other places. 5. Screen lock protection function. 6. Press reset to restore the screen for a second, then reset to factory settings. 7. Memory function after power failure. technical parameter: Voltage 110V~ 230V AC 50Hz/60Hz EU flame retardant socket: 16(2)A 230V-Max.3680W.u Socket UK: 13(2)A 230V - max 2900W.u AU plug: 10(2)A 240V-Max.2400W.u < /p> US plug: 15(2)A 120V-Max.1800W.u Temperature range: -40~120C < p> Accuracy: +/- 1% Timing accuracy: up to 10 minutes Open circuit (or lower than -40C), the first line of the screen flashes and displays E1, -40~-45C, displays -40C < /p> Short circuit (or greater than 120C), the first line of the display flashes E2, 121-129C indicates 120C < p>Below -10C or above 100C, the value will not be displayed after the decimal point Cooling mode, start temperature &gt; temperature d = stop Heating mode, start temperature &lt; temperature d = off Mode button: Press the mode. LCD display: temperature control mode F01-F04 timing mode F01 Cycle timing mode, start time (on)/stop time (off) cycle timing. Countdown start mode F02, now disabled, delay (start time ) on F03 Countdown mode off, now on, delay (stop time) off, countdown finished, turn off output and exit race p> F04 Countdown enabled Countdown mode disabled, now disabled, delay (start time) enabled, after start delay (stop time) disabled, countdown full countdown of stop time, turn off output and exit operation Temperature correction function: < p> Long press the electric mode button, real-time temperature calibration after 2 seconds Real-time temperature correction range : -9.9 ~ 9.9C Press and hold SET for 5 seconds to automatically exit without saving changes Press and hold the MODE key to exit and save the cutting offset change