Kidde p12040 Hardwire With Battery Backup Photoelectric Smoke Alarm

Product Details

Product Dimensions: 2 x 6 x 6 inches ; 8 ounces
Shipping Weight: 11.2 ounces (View shipping rates and policies)
Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
ASIN: B000P511TY
Item model number: 21006371
Batteries: 1 9V batteries required. (included)

By : Kidde
List Price : ~~$29.99~~
Price : $19.49
You Save : $10.50 (35%)

Item Description

Amazon.com Item Description
The Kidde P12040 is a 120VAC powered photoelectric smoke alarm with 9V battery backup. This advanced smoke alarm has the potential to function as a stand-alone unit or in an interconnected program. The Kidde P12040 contains a test button, quick-connect power harness and delivers a ten-year limited warranty. This alarm makes use of photoelectric sensing technologies. Photoelectric sensing alarms could possibly detect visible particles (connected with smoldering fires) sooner than ionization alarms. Ionization sensing alarms may possibly detect invisible fire particles (associated with flaming fires) sooner that photoelectric alarms. Kidde strongly recommends that each ionization and photoelectric smoke alarms be installed to aid insure maximum detection of the many different sorts of fire that can occur within the residence. The Kidde model P12040 is a 120VAC powered alarm that includes a 9V battery backup to supply continuous protection for the duration of a power failure and included a speedy connect power harness to make installation effortless.
Other features: Test Button Tests units electronic circuitry, horn and battery Red LED Alarm mode Green LED - Steady on presence of AC power.
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Technical Details

Photoelectric sensing technology
One button design, operates hush and test
Large mounting base, 9V battery backup included
Tamper resist feature
Pre-stripped wiring harness with tinned strands

Customer Reviews

Spoke to Tech Support. There is no Hush Button on this Photoelectric model (and the Test Button does not act in this regard either).
Go with the BRK / First Alert, Model 7010B, which has the Silence Feature (for up to 15 minutes).
Options I was looking for:
Photoelectric - This is better than Ionization, in my case, where the alarm is just outside of a bathroom - where steam can set it off (I'm replacing an AC only, Ionization. Photoelectric is less sensitive to steam). Disposing of Photoelectric detectors after 10 years is also more environmentally friendly. They do not contain americium-241, which is under the positive plate of the Ionization chamber.
AC powered with 9V battery backup - The most desirable to have
Hush Button - The 9V battery backup will keep the alarm going, even if you cut power at the circuit breaker box - Need to be able to silence a false alarm, without having to remove the battery.

My home is linked together with 5 of these smoke detectors. One day one of them went bad and started setting all 5 of them off as they are linked to each other. Ordered an exact replacement, hooked it up and everything is working just fine again.