Kidde KF20 Optical Smoke Alarm – Mains Powered with Battery Back-up


The Firex KF20 from Kidde is an optical smoke alarm making it very effective in the detection of smouldering fires such as those started on furniture and TV’s making them the ideal alarm for use in living areas hallways and landings. The KF20 is mains powered and can be inter-linked with up to 23 other Kidde mains alarms – including their ionisation head and optical ranges. If one alarm is triggered in an inter-linked circuit all alarms will go off making the system an ideal warning for the whole of your home. The KF20 has an alarm memory so you are able to identify which alarm triggered a warning within an interconnecting network alternatively the REM-TH allows the test and hush of interlinked units remotely – please see our site for more information. The alarm sensor on the KF20 has a dust compensation and bug screen reducing nuisance alarms a combined test/hush button for the testing of the alarm auto reset after activation and a tamper resistant locking device preventing the unauthorised removal of the alarm without a tool. It is mains operated with a 9V alkaline battery back-up batter supplied as standard and has a sound output of 85dB at 3 meters. Also available in the range is the Kidde SMK4896 a surface mount pattress designed for use for installations involving cable entry via trunking or conduit. 6 Year manufacturer warranty.

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