About the product1. Sensor closed loop, microcomputer can control temperature automaticly with LED display, high-power heating element, rapid heating, temperature accuracy and stability, will not affects if has wind, the real lead-free soldering desoldering. 2. Adjustable air flow, air volume and a gentle wind, convenient temperature regulation, can be adapted to a variety of uses. 3. The handle is equipped with sensor switch, when you grasp hand held, it will work, and when you put it down, it will stop work. 4. The system is equipped with automatic cold air function, when cooled, automatically enter power-saving state, can prolong the life of the heating element and protect the hot air gun. 5. A compact body shell designs, durable, beautiful, occupying a small work table. Brushless fan has extremely long life, minimal noise. 6. Safe solder QFP, PLCC, BGA and other temperature-sensitive components.Specification: General Model BST-858D Material Plastic, Metal Voltage AC 220V+/-10% 50Hz Power 650W+/-10% Working Temperature 0 Degree Celsius ~+40 Degree Celsius Relative humidity＜80％ Storage Temperature -20~80 Degree Celsius Relative humidity<80% Temperature Range 100 ~ 480 Degree Celsius Temperature Stability +/-2 Degree Celsius (Static state) Gas Type Brushless fan / soft wind Gas Flow 120L/min (Max) Setting Mode Knob Package Weight One Package Weight 1.95kgs / 4.30lb One Package Size 26.2cm * 16.5cm * 15cm / 10.31inch * 6.5inch * 5.91inch Qty per Carton 8 Carton Weight 16.10kgs / 35.49lb Carton Size 55cm * 32cm * 35cm / 21.65inch * 12.6inch * 13.78inch Loading Container 20GP: 432 cartons * 8 pcs = 3456 pcs40HQ: 1004 cartons * 8 pcs = 8032 pcs