Kidde 21006371 P12040 120V AC/DC Interconnect Photoelectric Smoke Alarm with Hush

Protect occupants and property with the Kidde Residential P12040 photoelectric smoke alarm — engineered for dependable, everyday fire monitoring in homes and multi-unit properties. This 120V AC smoke detector with a 9V battery backup keeps protection active during power interruptions while photoelectric sensing detects visible, smoldering fire particles earlier than some other technologies. Wired interconnect capability allows multiple units to alert simultaneously for faster whole-building notification, supporting integrated security and monitoring strategies.

Designed for installers and property managers, the P12040 includes a quick-connect power harness and dust cover for faster, clean installs on ceilings, plus a one-touch test button and Hush™ feature to temporarily silence nuisance alarms. The unit is UL listed and backed by a 10-year limited warranty, reducing maintenance risk and total cost of ownership. Ideal for residential security systems, facility monitoring, and multi-family housing, the Kidde P12040 blends reliable detection with practical installation features.

Add this alarm to your fire safety plan today — ideal for retrofit projects, new builds, and coordinated security/surveillance installations.

• Reliable early detection with photoelectric sensing to spot smoldering fires sooner and reduce property and occupant risk
• Whole-home monitoring via wired interconnect capability for coordinated alarms across multiple rooms and floors
• Continuous protection with 120V AC power plus a 9V battery backup to maintain security during outages
• Convenient false-alarm control with Hush™ silencing and a test button for quick on-site maintenance
• Fast installation and construction-safe setup with a quick-connect power harness and dust cover
• Long-term confidence with UL listing and a 10-year limited warranty for reduced lifecycle costs