User selectable 55 tone capability - No additional tone modules needed
Internal volume control
Corrosion resistant heat flowed epoxy finish
Supplied with factory sealed 1/2" (13mm) threaded fitting for quick installation
Diode polarized for supervised circuits (5533MD)
Speaker swivels 180° vertically or horizontally depending on orientation of mounting bracket
30" (762mm) numbered wire leads
Heavy duty zinc cast construction
UL listed for Class 1, Div. 1 and 2, Groups B, C and D, hazardous locations