Underwriters Laboratories Inc.

About UL | Careers | Contact Us

Security Systems

Residential Alarm Systems

Residential alarm systems are installed in individual homes and may be connected to a privately owned remote location that will receive a signal, which may be retransmitted to an emergency police dispatch center or a party designated by the owner.

Mercantile Burglar Alarm Systems

These systems are typically installed in commercial properties and activate an alarm-sounding device. The system may or may not transmit a signal directly off-premises to police dispatch center.

Central Station Alarm Systems

Central Station Alarm Systems are linked to a dedicated, private monitoring facility that monitors, maintains and supervises it. When the central station receives alarm signals, it dispatches runners to investigate and may also notify law enforcement or other parties specified by the owner of the protected property. Alarms can be silent or audible. Such a system could protect residential or commercial properties.

National-industrial Security Systems

These systems are designed for locations where U.S. government-contracted materials are being stored. Security systems for this situation must comply with UL 2050, Standard for Safety of National Industrial Security Systems. Because these systems involve national security, the UL Standard is not published online.

For more information, please contact your nearest UL Security & Signaling representative.

Top of Page