ADJ Products Fog Machine Fury 3000 1500W professional DMX Fog Machine, High performance pump for optimum output ADJ's Electronic Thermos Sensing (ETS) technology to always maintain optimum heat levels with no warm-up times between fog blasts, Automatic circuit cut-off to protect pump if fog fluid tank runs dry Special heating element design that uses an oil type transmission pipeline system to minimize the possibility clogging LED heating indicator system in tank: Red = Heating; Green = Ready to use; Flashing = Fog fluid tank is low