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5-Year Tiny Optical Smoke Alarm

The award-winning Cavius 5 Year Tiny Optical Smoke Alarm is also the World’s smallest at just 40mm in diameter, yet it still manages to do a big job. 

  • £12.50+ VAT
  • (£15.00 inc. VAT)
Full price: £24.09, saving £11.59
  • 48% less
FREE Next Working Day Delivery
Delivered next working day if ordered before 2pm
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Supplied with a long-life, replaceable lithium battery capable of lasting five years, it has a 30-day low battery indicator and is capable of producing alarm sounds at 85 decibels, so you’ll have no trouble hearing it. Essentially, it works like any ordinary alarm with a hush/test button for silencing alarms and checking its working condition and featuring a red LED condition indicator.

Simple to install to the ceiling using the two screws and wallplugs provided, it is the ideal choice for homes and caravans and has been 100% tested and approved to EN 14604:2005. Suitable for bedrooms and living rooms to detect smouldering fires and materials, aim to have at least one alarm on every floor, and avoid placing near a kitchen or shower room.

Plus, the Cavius smoke alarm is the winner of the reddot design awards in 2013, and how many smoke alarms do you know which can say that?


  • 5-year warranty
  • Approved to EN 14604:2005., CE Marked
  • Battery included plus hush button and test button
  • Diameter 40mm
  • Depth 42mm
  • Manufactured by Cavius