




🔥 Stay safe, stay savvy — smoke alarm tech that works as hard as you do! 🔥
The Kidde 29HD Optical Smoke Alarm combines cutting-edge photoelectric sensing with a 10-year battery life and easy installation, delivering reliable fire detection and user-friendly controls. Designed for modern homes, it offers a 3-year warranty and hassle-free maintenance, making it an essential safety upgrade for any space.





| ASIN | B07PB5YTY4 |
| Alarm | Smoke Alarm |
| Best Sellers Rank | 161,603 in DIY & Tools ( See Top 100 in DIY & Tools ) 260 in Smoke Alarms |
| Brand | Kidde |
| Colour | White |
| Customer Reviews | 4.4 out of 5 stars 1,303 Reviews |
| Global Trade Identification Number | 00047871285280 |
| Included Components | 1 x 9V Battery, 1 x Optical Smoke Alarm |
| Item Dimensions D x W x H | 3.3D x 10W x 10H centimetres |
| Item Type Name | Smoke Alarm |
| Item Weight | 180 Grams |
| Item weight | 180 Grams |
| Manufacturer | Kidde |
| Manufacturer Warranty Description | 3 years. |
| Model Number | Kidde 29HD Smoke Alarm |
| Operating Humidity | 29HD |
| Power source | Battery Powered |
| Product Style | Display |
| Product dimensions | 3.3D x 10W x 10H centimetres |
| Sensor Type | Photoelectric |
| Style | Display |
| UPC | 047871072729 047871285280 |
| Unit Count | 1.0 count |
| Upper Temperature Rating | 40 Degrees Celsius |
A**R
Working fine
Has gone off once because of smoke. It was great, feel confident
O**P
Smoke alarm
I got these for my Granddaughter who had a small cooker fire but no functioning smoke alarm. Kids reached for something on the cooker, accidentally turned plate on, which burned a box on the cooker.
J**Y
Good Value
Direct replacement for my old one , not that easy to install bit fiddly but a solid smoke alarm and nice and neat
K**S
Value for money
Compact, easy to install and no false alarms from cooking. Good value and comes with battery. Very loud though, which is a good thing, but any pets should be in another room when testing.
T**.
Good Alarm.
Perfect alarm, this was to replace a similar one which was installed over 12 years ago by the fire brigade (that one had a none replaceable battery) this one battery needs replacing probably after a few years, it has a cut off button so if you accidently burn the toast just press and it cancels. Previous alarm was by the same company and I had no problems with that one, so far so good with this one. Almost 2 years since alarm was fitted still it is working perfectly and I do ocassionaly burn the toast, I have alarm at bottom of stairs which are near (6ft or so) from kitchen if alarm goes off I can easily reach cancel button. Battery not replaced yet.
L**S
Kidde 29HDRB Smoke Alarm Is Now Smaller
When You Purchase This Alarm It's Best To Read The Simple Manual So That You Understand The Small Arm That Flicks Out When You Remove The Battery Which Has Been Placed The Wrong Way For Delivery Purposes And That Sprung Little Arm Has To Be Placed Back And Tucked Away While Fitting The Battery The Correct Way. If This Alarm Is A Replacement Of Your Old Kidde Alarm It Maybe Be A Shock That The New Version Is Alot Smaller So You Might Have To Plug Up Your Old Mounting Holes. Reading The Manual First Before Fitting The Battery So That You Understand When Testing The Unit A Certain Time Limit Has To Pass So It Keeps Quiet And The Red LED Still Blinks=Correct Mode For Use. I Understand Why The Size Has Got Smaller And Looking Inside My Old Kidde Alarm There Is Loads Of Spare Space. The Price Is Very Reasonable I Think For An Item That Can Give You A Warning That Something Is Going Wrong In That Area. Also The Battery Is Replaceable To Continue Use.
A**C
Neat smoke detector
Looks quite good for one of these, easy to fit and test. Purchased to replace 10 year old detector
G**S
Faulty
Same issue as a minority of buyers of this smoke alarm. Woken up at 03:30 to a full on alarm, panic ensues etc, turns out to be a faulty device and followed by a restless night. Avoid.
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