security system fabricator
A manufacturer of security devices and access control systems used in a building.
A security system supplier is a manufacturer of building alarms, security cameras, access restriction systems, and other equipment used to protect users of a building from criminal behavior or invasions of privacy.
The manufactured equipment protects building users against crime or intrusions into their privacy. Alarms, cameras, and restricted-access equipment perform different parts of that protective function.
An access control manufacturer is defined specifically by equipment that controls entry or exit. Security equipment has the broader protective purpose stated here, while a fire alarm system manufacturer supplies equipment concerned with detecting and signaling fires.