

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Thailand.
🔥 Stay ahead of danger with Kidde’s smart, interconnected smoke defense! 🔗
The Kidde Firex KF20 is a mains-powered optical smoke alarm featuring a 9V battery backup, capable of interlinking with up to 23 other Kidde alarms for synchronized alerts. Designed for reliable detection of slow, smouldering fires, it includes advanced dust and bug filters to minimize false alarms, a combined test/hush button for easy maintenance, and a tamper-resistant lock for enhanced security. Certified to UK safety standards with a 6-year warranty, it’s the smart choice for comprehensive home fire safety.









| ASIN | B00LGX1TSC |
| Alarm | Audible |
| Best Sellers Rank | 2,925 in DIY & Tools ( See Top 100 in DIY & Tools ) 19 in Smoke Alarms |
| Brand | Kidde |
| Colour | White |
| Country of Origin | China |
| Customer Reviews | 4.6 4.6 out of 5 stars (902) |
| Item Weight | 500 Grams |
| Model Number | KF2 4973 |
| Power source | Battery Powered |
| Product Style | Classic |
| Sensor Type | Photoelectric |
| UPC | 799441946892 |
M**T
Easy to install. Good detector
Great pair of smoke optical smoke detectors. Easy to fit as as always quick delivery from amazon. Recommended.
M**N
REPLACES THE KF10
Perfect replacement for my firex KF10. Didn't need to change ANYTHING. Just plugged the existing wires in. Push and click onto existing ceiling plate. Job done.!
M**R
Easy installation
Next day delivery, easy to install, great product.
M**R
Good value for money. Fiddly to install.
If used to replace the earlier version, a larger hole may be required in the ceiling to make room for the broad flat connector, and the fixing screw holes are on a different spacing. The connector required a hefty push with a screwdriver to achieve a positive snap. Seems fine electrically. Good value for money. Made in China.
U**K
Why buy unknown brand when these do the job properly?
Easy to fit as new. Even easier if you're replacing old ones of the same make since you just unscrew and unplug, plug in and screw into existing baseplate.
B**F
Easy to replace old units.
Got these to replace 2 alarms which had been fitted around 20 years ago. Was delighted to discover that the old mountings were still compatible so it was just a case of 'plug and play' to connect up the new alarms, no rewiring or screwing. Will keep us going for another 10 years without hassle.
J**E
Good replacement.
Purchased to replace existing smoke alarms. Slightly smaller than my previous alarms and very well priced. Alarm volume is loud as expected and I expect the lifespan to be a long one.
A**G
Smoke alarms
Prompt delivery however when I read the instructions it said it had to be installed by a qualified electrician. I read before I purchased it that it wouldn't so confused by this. It also didn't have an electrical connector unit, so in the end I had to pay an electrician to install. Let's hope they work!
F**X
Arrivato nei tempi previsti.
J**N
Einfache Installation, ordentliche Qualität
C**G
da der Anschlußstecker über das Gehäuse herausragt. Somit Dose oder extra Loch nötig. Funktioniert auch nur mit Stützbatterie, nicht ausschließlich mit 220V. Wegen dieser extra Bastelei gibt es Punktabzug.
Trustpilot
2 weeks ago
1 month ago