|Item Weight||11.2 ounces|
|Product Dimensions||2 x 6 x 6 inches|
|Item model number||21006371|
|Batteries||1 9V batteries required. (included)|
|Item Package Quantity||1|
|Warranty Description||5 Year Limited|
Kidde p12040 Hardwire With Battery Backup Photoelectric Smoke Alarm
|Price:||$16.97 & FREE Shipping on orders over $49. Details|
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The Kidde P12040 is a photoelectric smoke alarm powered by 120VAC and comes equipped with 9V battery backup. This advanced smoke alarm functions as a stand-alone unit or in an interconnected system.
The Kidde P12040 uses a photoelectric sensing technology that detects visible particles associated with smoldering fires sooner than ionization alarms. Ionization alarms detect invisible fire particles associated with flaming fires sooner than photoelectric alarms. Kidde recommends that both types of alarms be installed inside the home to protect against both types of fires.
The smoke alarm can be installed on any standard single gang electrical box, up to a 4” octagon junction box. The electrical connection (to the alarm) shall be made with a plug-in connector. A maximum of 24 Kidde devices can be interconnected in a multiple station arrangement. The interconnect system must not exceed the NFPA (National Fire Protection Association) limit of 18 initiating devices, of which 12 can be smoke alarms. With 18 initiation devices (smoke, heat, CO, etc.), interconnected, it is still possible to interconnect 6 strobe lights and or relay modules. The unit shall provide optional tamper resistance that deters removal of the unit from the wall or ceiling.
The alarm shall include a test button that will electronically simulate the presence of smoke and cause the unit to go into alarm. This sequence tests the unit’s electronics, battery and horn to ensure proper operation. There is one red LED to indicate the alarm's current status and mode of operation. During the standby condition, the red LED will flash every 30-40 seconds to indicate the smoke alarm is operating properly. During the alarm condition, the red LED will flash rapidly (one flash per second). The rapid flashing and pulsating alarm will continue until the air is cleared from the products of combustion. The unit will also have one green LED to indicate the presence of power.
What's in the Box
One Kidde P12040, including test button, quick-connect power harness, 9V battery backup, and 10 year limited warranty.
- Model: P12040
- Power Source: 120VAC
- Sensor: Photoelectric
- 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)
- Size: 5.6” in diameter x 1.55” depth
- Weight: 1 pound
- Interconnects: Up to 24 Kidde devices
- LED: Green, receiving ac power / Red, alarm mode
- Warranty: 10-year limited
Top Customer Reviews
Well wouldn't you know iit....the next night same time I was in a nice deep sleep and thet went off again!!!!! I had to get the ladder out again and disconnect one of the ones form the night before and they stopped going off.
This is extremely frightening when they go off for no reason.do not buy this brand. We've been battling these alarms for years now. Horribly scary when the go off in the middle of the night for no reason and you have to unplug and then your not protected from a real fire! Ridiculous!!!
After six months, a different one started chirping. This time, I actually did a little research. According to the "P12040 Smoke Alarm User's Guide", section 4 "OPERATION AND TESTING", if the alarm chirps at the same time as the red led flashing, it means low battery. (If it chirps between the red led flashes, it means a component of the smoke sensing chamber failed.)
It turns out that this model smoke alarm comes with a cheap Carbon-Zinc battery (Kidde Gold Peak model 1604P) rather than a better Alkaline type or a best Lithium type. I assumed that the ten year warranty displayed on the box meant that the battery would last ten years, as some other models claim. Let the buyer beware.
So, my experience is that this model smoke alarm is fine after seven months of use, but expect to replace the battery. I intend to replace the batteries as they fail with Lithium type batteries.
Also, this model does indeed have a "HUSH" feature. According to the "P12040 Smoke Alarm User's Guide", section 5 "NUISANCE ALARMS", "The Model P12040 has a HUSH control that is extremely useful in a kitchen area or other areas prone to nuisance alarms." See section 4 "OPERATION AND TESTING", paragraph "HUSH CONTROL", on how to use it.Read more ›
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.
Most Recent Customer Reviews
Replaced a unit that had been exposed to dust from a wood floor refinishing. have had no further problemsPublished 7 hours ago by Chief Pedro
These things can lead to people dying from fires. They go off for no reason and cannot be silenced. I bet people just pull them out of the ceiling and remove the battery to be free... Read morePublished 5 days ago by Timely Reminder
- They are loud in the event that you have an actual fire
- When they fail, they fail spectacularly by going off in the middle of the night
-... Read more
Wish I had seen the negative reviews before installing 12 of these on high ceilings! Within months, we had our first false alarm. Read morePublished 5 days ago by Rob
Replaced 14 year old wired alarms with new p12040 Kidde smoke alarms. Only problem we had before this was chirping from a low battery. Read morePublished 18 days ago by Karen
smoke detector works fine. I don't ever want to test it for real, however!
replaced the 15 year old broken detector. no issues fit perfectly.
Our smoke detector in our living room's 16 foot high ceilings would go off when a little smoke would come out of our kitchen oven while baking or cooking in the kitchen nearby. Read morePublished 1 month ago by Paul Meyer
These smoke alarms arrived on time and as expected. Please note that the brackets are NOT compatible with the units you may be replacing. Read morePublished 2 months ago by John Kimel