BRK 670MBX (679) Dicon Ionisation Alarm with 9V Battery Backup

Product Code: 81969
BRK 670MBX (679) Dicon Ionisation Alarm with 9V Battery Backup
Product Code: 81969
230V AC. Mains-powered ionisation alarm with 9V battery backup. Can be interconnected with up to 12 alarms from the 670, 650 and 680 series. Easy to install, with pause facility to silence false alarms.


  • 85dBA Alarm
  • Mains & Battery-Powered
  • 5 Year Manufacturer's Guarantee (T&Cs Apply)


EN 14604: 2005.
€15.95 Incl. 20% VAT
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Additional Information
Technical Specification
  • Power Source : Mains & Battery-Powered
  • Brand : BRK
  • Product Type : Dicon Ionisation Alarm with 9V Battery Backup
  • Alarm Product Type : Smoke
  • Model Name : 670MBX
  • Total Product Weight : 270 kg
  • Model No : 670MBX (679)
  • Battery Duration : Replacement Battery (Alkaline)
  • Wireless/Wired : Wired
  • Alarm Sensor Type : Ionisation
  • Pack Size : 1
  • Manufacturer Guarantee : 5 Year Manufacturer's Guarantee (T&Cs Apply)
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


Standard delivery: €15

Free delivery on all orders over €70.00

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BRK 670MBX (679) Dicon Ionisation Alarm with 9V Battery Backup is rated 4.1 out of 5 by 134.
Rated 1 out of 5 by from Easy to fit..not! I bought this as a replacement for my old BRD detector because I thought it would be simpler to fit. It wasn't, quality is so poor compared to the old and location of unit onto the base is so fiddly I had a sore neck afterwards! And what's with the piece of flimsy card that turns out to be the gasket, I'd binned this with the packaging and resigned to re-using the old foam gasket until I realised! Very poor, will not buy BRD again and urge you to avoid them too.
Date published: 2017-04-23
Rated 3 out of 5 by from Use a base...... Straight forward enough to fit, make sure and use a base.
Date published: 2017-03-29
Rated 3 out of 5 by from Off-white colour Why oh why design a product to be mounted on ceilings and manufacture it in a totally off-white, disgusting brownie/grey colour plastic? The picture online is not representative of just how off-white the product really is. It stands out a mile away on a nice new white ceiling! This was a direct replacement of the same model purchased ten years ago and is more off-white than the original product its replacing. If you don't have access to the ceiling void above the smoke alarm then the surface mounting kit doubles the depth of the device. Surely a GSCE design student could have come up with a better mounting method. Why would you want a smoke alarm to hang down over 70mm from the ceiling? Whilst I'm sure the product is perfectly functional, its as if they've actually gone out of the way to make it look so bad.
Date published: 2017-03-03
Rated 5 out of 5 by from An essential piece of kit An essential piece of kit in the home, simple installation for a reasonable price.
Date published: 2017-02-17
Rated 3 out of 5 by from Easy fit. Battery a dud Used to replace older BRK product. easy to fit using base plate but having done so discovered the battery was dud on one of the two purchased which I had to replace at additional cost
Date published: 2017-02-13
Rated 5 out of 5 by from Smoke detector Great product easy to install , very robust.will purchase again.
Date published: 2017-01-18
Rated 1 out of 5 by from Smoke alarm Good value for the price, however I took these all back to screwfix due to their performance. These were setting off the alarms once these were energised, due to failure of circuit boards which were smouldering Potential firehazard! DO NOT BUY
Date published: 2017-01-11
Rated 5 out of 5 by from good level of senstivity My builder was happy to fit this as he had recommended one that is connected to the mains power for extra safety cover, which this does. Have managed to set this off the few times I have burnt toast roughly 3-4 metres away from the alarm, but easy enough to mute it.
Date published: 2016-12-27
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