The Kidde Firex smoke and heat alarms are mains powered with a back-up battery. If the ceiling is concrete or there is insufficient room for cable, the SMK4896 surface mounting pattress may be required for the installation.
All of our product reviews are written by real customers that have purchased this product from us and are published without modification.
C O
14th November 2025
T D
15th June 2024
Quality product and good delivery
Anonymous
19th March 2017
Easy to install
Ordered the fire alarms to replace the originals that had turned yellow with age
Anonymous
19th December 2015
Inadequate terminal block
The only thing wrong with these pattresses is that the terminal block supplied is too small fit the neutral conductor of the connector cable and the neutral conductor of the supply cable. 9 times out of ten they have to be forced in, a procedure which adds frustration and minutes onto what should be a simple job. Sometimes it is not then possible to do up the screw because it is fully extended and cannot be got to 'bite' the thread. The problem is probably to do with the connector cable. The neutral termination should be marginally thinner it would make all the difference. As it is, an easy job is made very difficult.
| Product Code | KESMK4896 |
|---|---|
| Brand | Kidde |
| Manufacturer's Part Number | SMK4896 |
| Approvals & Markings | CE Marked |
| Colour | White |
| Compatible Products | Kidde Firex Alarms |
| Equipment Type | Base |
| Material | Plastic |
| Operating Temperature | 0°C To +40°C |
| Recyclable | Not Recyclable |
| Relative Humidity | Up To 93% |
| Warranty | 6 Years |
| Dimensions (Unit) |
|
| Weight | 48g |
| Datasheets |
No issues with product