The First Alert 9120BLA Hardwired Ionization Smoke Alarm is designed to provide early fire warning with the reliability of 120V hardwired power plus a 10-year battery backup for protection during outages. Its ionization sensor is optimized to detect smoke from hot, fast-flaming fires (like paper or grease fires).

Installation is simplified with a streamlined mounting system and no rewiring required for replacements. For expanded coverage, it can interconnect with up to 12 First Alert or BRK hardwired alarms (plus select compatible signaling devices), so when one sounds, all sound. A latching indicator helps identify which unit triggered the alarm.

Features:

• 120-volt hardwired smoke alarm wires directly into your home’s electrical system
• Ionization smoke sensor reliably detects particles from fast-flaming fires
• Hassle-free installation, no need to rewire
• 10-year battery backup for protection during power outages
• Can integrate with up to 12 other First Alert or BRK hardwired smoke detectors