MINIATURE ADJUSTABLE VOLUME BUZZER; 24 VAC OPERATING VOLTAGE; 0.2 AMPERE OPERATING CURRENT; SOUND INTENSITY 71.5 DB AT 3 ft; SHAPE RECTANGULAR; SURFACE MOUNTING; CHROME COVER HOUSING; ZINC PLATED (BASE); SIZE 1-15/32 INCH W X 1/2 INCH D X 1-5/8 INCH H