Door Bell

Doorbells with one pushbutton are ideal for residential locations while doorbells with two pushbuttons are ideal for commercial locations with more than one entrance.

A dual chime is a distinctive sound to distinguish between the front doorbell and back doorbell.

A UL listing indicates that an electrical device has been tested for safety and quality assurance, and is safe for public use.

A doorbell transformer will lower the electrical current to about 10 to 20 volts. Most household circuit panels can handle 120 or 240 volts.

• A wired doorbell features a circuit that is completed when you press the button. When the circuit is complete, the chime or buzz sound is activated.
• A wireless doorbell features a battery-operated transmitter that sends a radio signal to the receiver unit to activate the sound chip when the button is pressed.

A doorbell is a signaling device that is typically placed near an entry door to a building. When a visitor presses a button, the bell rings inside the building, alerting the occupant to the presence of the visitor.