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Kidde PE120 (P12040) (21006371) 120V Photoelectric Wire-in Smoke Alarm
Kidde PE120 (P12040) (21006371) 120V Photoelectric Wire-in Smoke Alarm

Need to replace old Firex alarm?
PLEASE READ. You should replace ALL your old Firex alarms with new units to maintain communication between all alarms. This Kidde P12040 model can replace the old Firex model: Firex 4580, FPAD, PAD, PG40, 120-890 and 4480.

Since old Firex and new replacement have different wiring harness, the existing wiring harness needs to be changed.

If you don't want to rewire, you need to get a quick convert adapter Kidde KA-F and perform 3-easy-step installation:
  1. Replace the ceiling mounting bracket
  2. Install KA-F adapter and attach existing wiring to the alarm.
  3. The new alarm will now be interconnected and compatible with your Firex alarm system.
Our Price: $22.80
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Model: KIDDE-PE120

Technical Spec Downloads
Technical Spec

The Kidde P12040 is a 120VAC powered photoelectric smoke alarm with 9V battery back up. This advanced smoke alarm has the ability to function as a stand-alone unit or in an interconnected system. The Kidde P12040 includes a test button, quick-connect power harness and offers a 10-year limited warranty.

This alarm uses photoelectric sensing technology. Photoelectric sensing alarms may detect visible particles (associated with smoldering fires) sooner than ionization alarms. Ionization sensing alarms may detect invisible fire particles (associated with flaming fires) sooner that photoelectric alarms.

Kidde strongly recommends that both ionization and photoelectric smoke alarms be installed to help insure maximum detection of the various types of fire that can occur within the home.

The Kidde model P12040 is a 120VAC powered alarm that includes a 9V battery backup to provide continuous protection during a power failure and included a quick connect power harness to make installation simple.

  • Photoelectric Sensor - Advanced photoelectric sensor may detect visible particles (associated with smoldering fires) sooner than ionization alarms
  • Battery Backup (9V Battery Included) - Provides continuous protection even during power outages.
  • Test Button - Tests unit's electronic circuitry, horn and battery function.
  • Quick Connect Power Harness - Makes installation fast and easy.
  • Dust Cover - Protects sensor during construction.
  • Battery Pull Tab - Eliminates battery installation time and keeps battery fresh.
  • Red LED - Indicates that the smoke alarm is operating properly, HushTM, and alarm condition.
  • Green LED - Indicates the presence of AC power.
UPC # 0-47871-40399-8
Model P12040
Power Source 120VAC
Audio Alarm 85dB at 10ft
Temperature Range 40°F (4.4°C) to 100°F (37.8°C)
Humidity Range 5%-95% relative humidity (RH)
Sensor Photoelectric
Size 5.6 in diameter x 1.55 in depth
Weight 1lbs
Interconnects Up to 24 Kidde devices
LED Green, receiving ac power
Red, alarm mode
Warranty 10 year limited

Kidde P12040 diagram

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