

🔥 Stay ahead of danger with Kidde’s smart, connected smoke alarms 🔗
The Kidde Firex KF20 is a mains-powered optical smoke alarm with a 9V battery backup, designed to interlink with up to 23 other Kidde alarms for comprehensive home safety. Featuring energy-efficient operation, a combined test/hush button, tamper-resistant locking, and dust/bug compensation, it meets UK Building Regulations and offers 6 years of reliable, certified protection.
| Part Number | KF2 4973 |
| Package Dimensions | 16.4 x 16 x 11.7 cm; 500 g |
| Batteries | 2 9V batteries required. (included) |
| Item model number | KF2 4973 |
| Colour | White |
| Style | Classic |
| Power Source | Battery Powered |
| Voltage | 240 Volts |
| Item Package Quantity | 1 |
| Batteries included? | Yes |
| Batteries Required? | No |
| Battery Cell Type | Alkaline |
| Item Weight | 500 g |
H**N
Perfect replacement for a 10 year old alarm
I had two smoke alarms that had reached their 10 year lifespan and needed replacing. I can’t believe how easy they were to replace with this model! Literally took one minute, clicked into place, couldn’t ask for more.
A**R
Replacement for old Firex KF120 (made in early 2000)
Perfect replacement for old Firex KF120. Same cable connection, same fitting plate. Just unplug old device and mount this new smoke alarms. P
D**S
Easy to install
Work as advertised
D**F
Straightforward and safe
The fitting was fairly straightforward, I did both in less than an hour including removal of the old 2 alarms. Appear reasonably sturdy and should last me for the next ten years. We will have to see how long the backup batteries last, Duracell supplied with the alarms.
A**R
Smoke alarms safety
Fire alarms fitted so easy to install very happy now I feel a lot safer
M**
Happy
Replacement for broken alarm. Very happy.
R**D
Easy to fit
Low profile and easy to fit
A**R
Perfect replacement for older alarm
I was a bit concerned about "faulty" being written on one of the boxes.However, all the parts were in the box and connected easily to existing wiring.Tested interlink with no issues and look forward to years of protection.For new installation you will need a qualified electrician.
Trustpilot
1 month ago
2 weeks ago