ELECTRONIC HORN WITH GRILL; 120 VAC; 21 MILLIAMPERE; SOUND INTENSITY 90 DB AT 10 FT; THERMOPLASTIC HOUSING; GRAY; SURFACE MOUNTING; SIZE 5-1/2 INCH W X 3-11/16 INCH D X 5-1/2 INCH H; APPLICATION ALARM, INDOOR, SCHEDULING, TIMING, WARNING; APPROVAL UL 464