Temperature read out in ℃ and ℉ more info: http://www.atten.com/project/at938d/ On/Off switch on the right side of the unit. MCU controlled temperature calibration. Simulate bar indicating heating up status. LCD display screen making control visualization. User-friendly menu enables system setting easier. Separate iron stand to save room and to make easier deposit. Buttons (1, 2, 3) for pre-setting or switching frequently used temperature. Low-voltage heater separated from power supply to keep soldering work safer. Soldering tip designed separate from heater and using exchangeable 900M series to save use-cost.