Carbon Monoxide Detectors

Carbon monoxide detectors protect homes, apartments, and workplaces by alerting you to invisible, odorless CO gas from furnaces, fireplaces, water heaters, generators, and attached garages. A CO alarm with an electrochemical sensor tracks rising levels and sounds a loud 85 dB alert before exposure becomes dangerous, giving you time to ventilate, shut off fuel-burning appliances, and evacuate. Options include battery-operated, plug-in with battery backup, hardwired interconnected systems, and smart CO monitors that send phone notifications and integrate with security or smart home platforms. Many models combine smoke and carbon monoxide detection to simplify installation.

For reliable performance, look for UL 2034 or CSA 6.19 certification, a digital display for current and peak levels, test/silence controls, end-of-life alerts, and sealed 10-year batteries that prevent low-battery chirps. Install CO detectors on every level, outside each sleeping area, and near rooms over garages. Avoid placement in bathrooms, within a few feet of cooking appliances, or behind curtains; follow the manufacturer’s height guidance, as CO mixes evenly in air. Test monthly, vacuum vents twice a year, replace batteries as needed, and replace the entire unit at the stated service life. Hardwired interconnects ensure all alarms sound together, while Wi‑Fi models provide remote alerts for rental properties and vacation homes. For code compliance and insurance requirements, verify local regulations, especially for rentals and new construction. Whether you’re equipping a small home or a large facility, the right carbon monoxide detector improves fire safety, supports HVAC troubleshooting with peak readings, and adds peace of mind during power outages with battery backup. This category helps you compare features, pricing, and brands so you can choose a CO detector that fits your space, meets standards, and delivers fast, dependable alerts. Popular choices include Kidde, First Alert, Nest, and Bosch, with warranties and support readily available across North America.