ANSI/UL 2034

ANSI/UL 2034 is a safety standard developed by Underwriters Laboratories (UL) for carbon monoxide (CO) alarms, which detect dangerous levels of CO gas in homes. It specifies the performance, construction, testing, and labeling requirements to ensure these alarms reliably alert occupants to potential poisoning risks. The standard aims to ensure CO detectors are sensitive enough to detect harmful gases promptly while minimizing false alarms, helping protect residents from silent, deadly CO exposure. Devices meeting this standard have been tested and certified for safety and effectiveness, promoting trusted and consistent safety measures in residential environments.