Kidde Smoke & Carbon Monoxide Detectors with Battery Backup 4-Pack & Kidde Smoke Detectors with 9-Volt Battery Backup 6-Pack

This comprehensive whole-home fire and CO monitoring system includes a 4-pack of Kidde hardwired smoke and carbon monoxide detectors with battery backup, as well as a 6-pack of Kidde hardwired smoke detectors. The Kidde combo units utilize photoelectric and electrochemical sensors to detect both smoke and CO in a single alarm. These sensors are capable of identifying smoldering and flaming fires, as well as poisonous CO gas. The smoke-only models, on the other hand, are equipped with ionization sensors that are optimized for sensing flaming fires.

When smoke, fire, or CO is present, both models emit a piercing 85 dB alarm and flashing LED lights. The combo units not only provide alerts but also announce the specific hazard detected. In the event of an emergency, all interconnected alarms sound in unison, ensuring that alerts are heard even in distant areas of your home. Additionally, with battery backup, these alarms continue to monitor your home during power failures.

The combination of the combo units and smoke-only models offers advanced sensing technologies, vocal warnings, visual indicators, and reliable hardwired power with battery support, providing full protection for your home. The 2-in-1 smoke & carbon monoxide detector alerts you to both fire and poisonous gas events, while the voice alarm announces "Fire!" or "Carbon Monoxide" when smoke, fire, or CO is detected.

Utilizing hardwired 120V AC power with battery backup, these alarms ensure reliable smoke and CO detection even during power outages. Furthermore, the interconnectable feature allows all connected Kidde devices to activate when one detects smoke or CO. The ionization sensor detects invisible fire particles, while the electrochemical sensor senses carbon monoxide gas.

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