?3 in 1 design?it combines together in one common unit: soldering station, rework station and DC stabilized switching power supply(minimum current display unit is 0.1mA), these three functions can be used independently or simultaneously. ?PID Temperature Control Technology?The machine detects the actual temperature at high speed and corrects it. The temperature compensation speed is fast and the error is small. ?Humanized Functions?Celsius/Fahrenheit conversion: Sleep function: Digital temperature correction: Cool / hot air conversion at the flip of a button ?No Air Protection?If the fan of hot air gun stops unusually during the use, the program will automatically set an alarm and cut off the power supply to the heating core to ensure safety. ?1 Year Warranty - USA Exclusive ?