Most doorbell problems are caused by loose wire connections or worn-out switches. To test your system, you will need a multitester, which checks voltage and continuity. VIEW E-EDITION.

The first electric doorbell sprang to life in 1831, comprised of a bell that could be rung at a distance using an electric wire. Nearly 200 years later, two U.K. entrepreneurs think they have come ...

STI's Wireless Doorbell Button with 4-Channel Voice Receiver conveniently lets you know when a guest or customer is waiting. When the doorbell button is activated, it sends a wireless radio signal ...