Mains-powered smoke alarm that can be interlinked with up to 23 other Kidde mains alarms, optical or heat. 9V Alkaline back-up battery supplied as standard. Once interlinked, detection of the relevant danger by an individual unit will sound across all connected alarms. Can be used throughout the home, except in the kitchen where a heat alarm is recommended. Combined test/hush button allows regular alarm testing and can be used to temporarily silence nuisance alarms. Requires installation by a professionally qualified electrician. Fixings supplied.

Brand Name	Kidde
Colour	None
Material	None
Manufacturer Model No	KF20
Wear Type	None
Type	Smoke Alarm
Certifications Met	None
Country of Origin	None
Protects From	None
Waterproof	None
Number of Pockets	None
Alarm Sensor Type	Optical
Battery Duration	Replaceable
Current Type	AC/DC
Fixings Supplied	Fixings & Fittings Supplied
Interlinked	Interlinked
Interlinked Compatibility	Alarm can be hardwire interlinked with Kidde Firex Alarms
Low Battery Indicator	Low Battery Indicator
Manufacturer Guarantee	6 Year Manufacturer's Guarantee (T&Cs Apply)
Model Name	KF20
Noise Level at 3m	85 dBA
Operating Temperature	0 to 40 °C
Pack Size	1
Pieces in Pack/Case	1
Power Input	Mains
Power Type	Mains-Powered with Battery Backup
Power Voltage Supply	230 V
Product Type	Interlinked Optical Smoke Alarm
Smart Compatibility	Not Smart
Suitable Room Type	Suitable for use in Hallways, Landings, Bedrooms, Living Rooms & Dining Rooms