Products and standards
UL offers safety and performance testing and certification to the applicable Standards, including:
Fire alarms
| Standard | Title |
| UL 217 | The Standard of Safety for Single and Multiple Station Smoke Alarms |
| UL 268 | The Standard of Safety for Smoke Detectors for Fire Alarm Signaling Systems |
| UL 2034 | The Standard of Safety for Single and Multiple Station Carbon Monoxide Alarms |
| UL 985 | The Standard of Safety for Household Fire Warning System Units |
| UL 864 | The Standard of Safety for Control Units for Fire Protective Signaling Systems |
| UL 521 | The Standard of Safety for Heat Detectors for Fire Protective Signaling Systems |
| UL 539 | The Standard of Safety for Single and Multiple Station Heat Detectors |
Gas alarms
| Standard | Title |
| UL 1484 | The Standard of Safety for Residential Gas Detectors |
| UL 2034 | The Standard of Safety for Single and Multiple Station Carbon Monoxide Alarms |
| UL 2075 | The Standard of Safety for Gas and Vapor Detectors and Sensors |
Fire alarm controls
| Standard | Title |
| UL 864 | The Standard of Safety for Control Units and Accessories for Fire Alarm Systems |
| UL 985 | The Standard of Safety for Household Fire Warning System Units |
Alarm signals
| Standard | Title |
| UL 1638 | The Standard of Safety for Visual Signaling Appliances - Private-Mode Emergency and General Utility Signaling |
| UL 1971 | The Standard of Safety for Signaling Devices for the Hearing Impaired |
| UL 464 | The Standard of Safety for Audible Signal Appliances |
Hospital signaling
| Standard | Title |
| UL 1069 | The Standard of Safety for Hospital Signaling and Nurse Call Equipment |
