Carbon Monoxide and Smoke Detector Electrochemical and Photoelectric Hardwired 120 V AC 3 V Battery 3-Pack P4010ACLEDSCOCA

This 3-in-1 alarm combines electrochemical CO and photoelectric smoke detection with an LED strobe light for clear alerts. Hardwired with 120 V AC power and backed by a 3 V lithium battery, it provides reliable, continuous protection. Easy to install and maintain, this 3-pack offers comprehensive safety coverage for homes and workplaces.