First Alert CO400 Battery-Powered Carbon Monoxide Alarm | No Digital Display, Easy Battery Access

Safeguard your home and loved ones from the invisible threat of carbon monoxide with the First Alert CO400 Battery-Powered Carbon Monoxide Alarm. Engineered for uncompromising reliability and ultimate convenience, this essential safety device delivers continuous, accurate monitoring for CO gas, ensuring your peace of mind.

Advanced Detection & Unwavering Reliability

• Precision Electrochemical Sensor: The CO400 utilizes advanced electrochemical sensing technology, renowned as the most accurate method available, to detect dangerous levels of carbon monoxide quickly and reliably.
• Long-Life Sensor: Features a permanent, sealed sensor designed to provide effective CO detection for up to 5 years, offering consistent protection and reducing replacement frequency.
• Battery-Powered Operation: Operates on a single 9V replaceable battery (included), guaranteeing continuous protection even during power outages, when CO incidents are often most critical.
• Easy Access Battery Door: Designed with a user-friendly, tool-free battery compartment, making battery changes quick and hassle-free without needing to dismount the entire unit.
• Loud 85dB Alarm: Upon detecting hazardous CO levels, the unit emits a powerful 85-decibel siren, ensuring everyone in your household is alerted to potential danger.
• Test/Silence Button: Easily test the alarm's functionality with a single press or silence nuisance alarms temporarily.
• End-of-Life Warning: Alerts you when the alarm unit needs to be replaced, ensuring continuous, up-to-date protection.

Simple, Effective Home Safety Solution

The First Alert CO400 Carbon Monoxide Detector prioritizes essential protection through straightforward operation. Without a digital display, its focus remains solely on alarming when CO is detected, simplifying use and focusing on core safety. Its wireless, battery-operated design allows for flexible installation in any room where CO protection is vital, from bedrooms to hallways, or even in RVs and vacation homes.

• No Wiring Required: Enjoy hassle-free installation anywhere CO risks exist – simply mount and activate.
• Continuous 24/7 Monitoring: Provides constant vigilance against the colorless, odorless, and deadly carbon monoxide gas.
• Trusted First Alert Quality: From a leading brand in home safety, you can trust the CO400 for its quality, durability, and dependable performance.
• Compact & Discreet Design: Blends seamlessly into your home environment without being obtrusive, focusing on safety without distraction.

Invest in the First Alert CO400 Battery-Powered Carbon Monoxide Alarm for reliable, easy-to-manage protection against the hidden dangers of CO poisoning. It's an indispensable investment for the safety and well-being of your family.