The X-Tronic Model 4020-PRO-X is a State-of-the-Art Professional Piece of Equipment, but the Features are Simple Enough to Understand and Program that an Amateur will have No Problem Using it. This Hot Air Rework Station is a Very High Quality unit and It Will Definitely Exceed your Expectations with its Quality and Durability compared to Any Other Product of its Kind in its Class. Features: ESD Safe, Brushless DC Centrifugal Fan Hot Air Delivery System, 4 Hot Air & Air Speed Memory Functions, Celsius to Fahrenheit Conversion Program, Mute/Unmute Sound "Beep" Function, Hot Air Calibration (±99°C), Hot Air Auto Cool Down & Standby Mode, Bright White LED Digital Readouts on Control Panel, Hot Air Gun Malfunction Protection & a Patented "Quick Change" Hot Air Nozzle Holder. The Temperature is Controlled by a Sensor Closed Loop, Microcomputer Zero Crossing Trigger. All X-Tronic Products come with a 30-Day Unconditional Money Back Guaranty which also includes a 3-Year Warranty.