ADJ Products Fog Fury 2000 Fog Machine 1100W portable, high output Fog Machine High performance pump for optimum output ADJ's Electronic Thermo 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