SOUND: 2 Tones on the Main Entrance, 1 Tone on the Secondary Entrance.
UL Approved for INDOOR Locations
INSTALLATION: Vertical hanging Position; Must Use at Least 18 Gauge Wire Everywhere (from Button to Chime, Transformer to Chime, and Chime to Chime if Wiring More than One)
BUILDER CHIME DIMENSIONS: 5" High x 7" Wide x 2.25" Depth