Universal Security Instruments, Inc., together with its subsidiary, engages in the design, marketing, and distribution of safety and security products for use in homes and businesses in the United States and internationally.

It offers a line of safety alarms, including units powered by replaceable batteries, sealed batteries, and battery backup alarms; and smoke alarms, which include hearing impaired and heat alarms, as well as carbon monoxide alarms, door chimes, ventilation products, ground fault circuit interrupters, and other electrical devices under the UNIVERSAL and USI Electric trade names.

The company provides its products to wholesale distributors; chain, discount, and television retailers; home center stores; catalog and mail order companies; electrical and lighting distributors, and manufactured housing companies; and other distributors.

It also sells its products through independent sales organizations and sales representatives, as well as through its own sales catalogs and brochures, and website.

The company was incorporated in 1969 and is headquartered in Owings Mills, Maryland.