Kidde 120V AC Wire-In Smoke Alarm with Battery Backup and Smart Hush, 12040

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With a built-in hush button, you can easily and safely silence nuisance alarms caused by non-emergency situations, such as overcooked dinners. This alarm ensures maximum detection while also reducing the temptation to remove the alarm's battery, which creates an unsafe situation.


  • Easy installation - front battery pull tab allows battery activation without removing alarm from mounting bracket
  • 9V battery backup provides protection during power outages 
  • Hush feature temporarily silences nuisance alarms
  • One-touch test button
  • Connects with up to 24 Kidde devices, including other smoke alarms, carbon monoxide, and heat alarms

Kidde i12040

Hardwire 120-Volt Inter-Connectable Smoke Alarm with Battery Backup

The Kidde i12040 contractor 6 pack is sold as one master pack that contains 6 individual units. These alarms are 120-Volt hardwired ionization smoke alarm with 9-Volt battery backup and Hush feature. Smoke alarms have the ability to function as single units or in an interconnected system.

All interconnected alarms will sound when one alarm goes off

Quick connector - makes installation fast and easy

Smoke detector requires hardwire installation

More Information
Manufacturer Model i12040
Brand Kidde
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