Fire & Safety Solutions
OPEN 7 DAYS A WEEK 0800 612 6537
Lines open today 8am - 10pm
Low Cost Delivery
From £4.68 inc VAT
Fast & Secure Online Payments
We Won't Be Beaten on Price
Live Online Chat
Available Now
Mains Powered Optical Smoke Alarm with Back-up Battery - Kidde Firex KF2
Discontinued Product
This product has been discontinued and is no longer available to buy.
View Alternative Product
Product Overview
Carbon Monoxide Alarms
Compatible Alarms
Technical Data
Show All
Kidde Firex KF2 and KF2R's are mains powered, interlinking optical smoke alarms. The KF2 has an alkaline battery back-up and the KF2R, a rechargeable lithium battery back-up. The units are hard wired and can be interlinked with other units from the series to create all round fire protection within the home.
Please Note: The Kidde Firex KF2 (previously Kidde 4973) and KF2R (previously Kidde 4985) are replacements for the Kidde 2239HI and 2239HILLs and can still be interlinked, however the new models cannot be used on the same base plates and use different connector blocks.
Interlink
- 230V mains powered optical smoke alarm
- Optional alkaline or rechargeable lithium back-up battery versions
- 6 year warranty
- A maximum of 24 units can be interlinked via signal cable
- Kitemarked to BS EN 14604:2005 - view the certificate
- Suitable for installations complying to BS 5839-6: 2013 Grade D, E and F
- CE marked
- LED indicator
- Test / Hush button
- Low battery warning chirp
- Supplied with dust cover (to protect unit temporarily if you carry out dusty work)
Please Note: The Kidde Firex KF2 (previously Kidde 4973) and KF2R (previously Kidde 4985) are replacements for the Kidde 2239HI and 2239HILLs and can still be interlinked, however the new models cannot be used on the same base plates and use different connector blocks.
The table below shows all the units that can interlink with the KF2 and KF2R.
Alarms from the same series|
Model Number
|
Type of unit
|
Type of interlink
|
| Optical Alarm |
Hard wire interlink
|
|
| Optical Alarm with Rechargeable Lithium Cell |
Hard wire interlink
|
|
| Heat Alarm |
Hard wire interlink
|
|
| Heat Alarm with Rechargeable Lithium Cell |
Hard wire interlink
|
|
| Ionisation Alarm |
Hard wire interlink
|
|
| Ionisation Alarm with Rechargeable Lithium Cell |
Hard wire interlink
|
|
Model Number
|
Type of unit
|
Type of interlink
|
| CO Detector with Rechargeable Lithium Cell |
Hard wire interlink
|
|
Model Number
|
Type of unit
|
Type of interlink
|
|
KE1239HI
|
Ionisation Alarm with Alkaline Battery |
Hard wire interlink
|
|
KE1239HILL
|
Ionisation Alarm with Lithium Battery |
Hard wire interlink
|
|
KE2239HI
|
Optical Alarm with Alkaline Battery |
Hard wire interlink
|
|
KE2239HILL
|
Optical Alarm with Lithium Battery |
Hard wire interlink
|
|
KE3239HI
|
Heat Alarm with Alkaline Battery |
Hard wire interlink
|
|
KE3239HILL
|
Heat Alarm with Lithium Battery |
Hard wire interlink
|
|
I240C
|
Ionisation Alarm with Alkaline Battery |
Hard wire interlink
|
|
PADC240
|
Optical Alarm with Alkaline Battery |
Hard wire interlink
|
|
KE4973
|
Optical Alarm with Alkaline Battery |
Hard wire interlink
|
|
KE4985
|
Optical Alarm with Lithium Battery |
Hard wire interlink
|
|
KE4899
|
Heat Alarm with Alkaline Battery |
Hard wire interlink
|
|
KE4892
|
Heat Alarm with Lithium Battery |
Hard wire interlink
|
|
KE4870
|
Ionisation Alarm with Alkaline Battery |
Hard wire interlink
|
|
KE4881
|
Ionisation Alarm with Lithium Battery |
Hard wire interlink
|
Technical Data
This is the technical data for the Mains Powered Optical Smoke Alarm with Back-up Battery - Kidde Firex KF2.
| Product Code |
|
||||
|---|---|---|---|---|---|
| Weight |
|
Product Datasheets
The following datasheets are available for this product.
Customer Reviews
19 customers have rated this product and it has an overall rating of 4.6 out of 5
All our reviews are written by real customers that have purchased this product from us and are published without modification.
Reviewed by: -
NO MORE ANNOYING ALARMS FROM KITCHEN SMELLS CUSTOMER SERVICE RECOMMENDED THIS OPTICAL ALARM FOR MY HALL, AS PREVIOUS ALARM AWAYS GOING OFF WITH COOKING SMELLS FROM KITCHEN.EXCELLENT ADVICE, THANK YOU
Published on: 25th September 2015
Reviewed by: -
Good quality, easy to use slightly expensive
Published on: 26th June 2015
Reviewed by: -
Perfect replacement for two out of date smoke alarms
Published on: 5th January 2015
Reviewed by: -
Works well, keeps us safe Part of a pair. We replaced an old set of these with new. The old and the new are the same size so easy to fit in which is a benefit. The old system worked well with few false alarms and the only alarms were when you would expect it. Luckily we've had no fires so it hasn't been tested in anger, but when the plumber was soldering that set it off so seems to work!
Published on: 13th December 2014
Reviewed by: -
Reliable and discreet and peace of mind.
Published on: 8th October 2014
Reviewed by: -
Sales lady knew all about the the Smoke alarm and delivery was first class.Product excellent.
Published on: 18th February 2014
Reviewed by: -
Very good product and service. Would recommend this company.
Published on: 22nd January 2014
Reviewed by: -
Excellent product highly recommended.
Published on: 29th November 2013
Reviewed by: -
Straight forward to fit in old housing
Published on: 24th September 2013
Reviewed by: -
Aquality product, reasonably priced and easy to install
Published on: 12th August 2013
Reviewed by: -
simple replacement instalation,works well no problems.
Published on: 11th May 2013
Reviewed by: -
Excellent product and does not go off when cooking like the old alarm did. Very easy to replace old alarm.
Published on: 19th February 2012
Customer didn't leave a rating
Reviewed by: -
Excellent product,excellent instructions enclosed.
Published on: 20th September 2010
Approved Partner
Looking for more information?
If you have any questions or would like more information about this product you can ask one of our specialists.
Live Chat Available Now
Direct Telephone
01507 464181
Direct Email
Email Now