The Morris Products 78140 home doorbell has a 4" diameter and can be operated with 6 VDC or an 8 to 16 VAC transformer. It has a satin aluminum finish and a removable snap-on cover for access to wiring for installation. This doorbell is suitable for a wide range of home, office, or business applications.

Morris Products manufactures electrical and lighting products such as meters and testers, tools, power connectors, and organizational devices. The company, founded in 1994, is headquartered in Queensboro, NY.