Mains Powered Optical Smoke Alarm with Back-Up Battery - Kidde Firex KF20

The Kidde Firex KF20 is a mains powered alarm with a 9V alkaline battery back-up and can be hardwire interlinked with other units from the same series to give the earliest warning of danger. Featuring a low battery warning chirp which can be silenced for 8 hours for a peaceful nights sleep. Optical smoke alarms are suitable for hallways, landing, and bedrooms they are quicker at detecting slow-smouldering fires that produce a lot of smoke (such as fire from soft furnishings).

• Mains powered with battery backup
• 9V alkaline back-up battery
• 6 year warranty
• Capable of interlinking up to 24 units via hardwire
• CE marked and Kitemarked to BS EN 14604: 2005
• Suitable for BS5839-6: 2019 Grade D2 installations
• LED indicator with combined test / hush button
• Supplied with dust cover and fixings; 2 x screws and 2 x rawl plugs
• Up to 70% less energy consumption in comparison to previous Firex models

Please note: The Kidde Firex KF20 (previously KF2 / 4973 / PADC240) and KF20R (previously KF2R / 4985 / PAR230) are replacements for the Kidde 223/9HI and 223/9HILL series, and can be electrically interlinked. However, the new models cannot be used on the old base plates for the 223/9HI and 223/9HILL series as they use different style connector blocks. This means that base plates must be swapped over on those stated models and connectors need to be replaced.