Kidde I12040 Dépliant

Battery Backup 
Part Number 21006378  

The Kidde i12040 is an AC/DC powered, ionization 
smoke alarm that operates on a 120V power source  
with 9V battery backup. 

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

This smoke alarm is available in a 6-piece cut case with 
tray for easy display as well as a 6-piece bulk pack for 
contractors and property owners. This unit is a UL Listed 
product with a 10-year limited warranty.

Easy Installation
• Front battery pull tab allows battery activation without

removing alarm from mounting bracket.

• Large mounting base makes mounting easier, protects

surface paint from dirt and covers imperfections.

• Pre-stripped wiring harness with easy off cap does not

require stripper tool. Tinned strands increase  
conductivity and wire nut grip.

Fewer Callbacks
• One button design for easy operation and less  

confusion. Operates Smart Hush™ and alarm test

• Battery run down protection will shut down alarm  

memory when AC power is not present, reducing  
low battery chirp.

• Dust cover protects sensor from contaminates during

construction reducing nuisance alarms

User-Friendly Features
• Tamper resist locking feature deters alarm theft
• Alarm memory flashes red LED indicating which unit

was the initiating alarm in interconnected system.

• Interconnectable with up to 24 devices (of which 18  

can be initiating) including smoke, CO and heat alarms.
See user’s guide for complete instructions.