... 2.intelligent cooling system ESD safe by desingn LED digital temperature.PID contrlled loop of sensor, limitess air adjust, rapid heating,precise ... as QFP,PLCC,SOP,BGA etc.Intelligent cooling systems. Deferred air delivery after swinch offupon completion of rework and automatically switch ... °C-550°C250WMetal BEST-850D+ Anti-static constant temperature hot air gun -industrial hot air desolder station