Safeguard your home and family with this reliable smoke and carbon monoxide detector. carbon monoxide detectors is advanced sensors accurately detect dangerous levels of smoke and CO, providing an early warning system to protect against fires and toxic gas leaks. The large digital display clearly shows CO levels in parts per million, while the colored LED lights indicate power, alarm, and fault status at a glance. With a simple button for testing functionality, fire alarms smoke detectors carbon monoxide offers peace of mind and easy operation. Install co detector on ceilings or walls throughout your living spaces for comprehensive protection. co2 detector Powered by batteries (not included) for convenience and safety during power outages.