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.
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

Click here to see information on our delivery charges and times



Hopefully you won't need to return an item, however, if you do, it is our aim to make this as simple as possible. By following the guidance below you can help us to help you when a product is not what you expected, or is faulty. Your statutory rights are not affected by this guidance.


Click here to see information on returns and cancellation

€15.45 Incl. 20% VAT

Add to Wishlist

BRK 670MBX (679) Dicon Ionisation Alarm with 9V Battery Backup is rated 4.2 out of 5 by 138.
Rated 5 out of 5 by from Replacements Bought as replacents for time expired units backing plate and connectors all the same so it's a shame couldn't buy just the head unit
Date published: 2017-07-06
Rated 5 out of 5 by from What it does on the tin Easy to install, relatively neat, what else can you really say for a smoke head?
Date published: 2017-06-29
Rated 5 out of 5 by from it's a smoke alarm needed to renew/update my electric smoke detectors. easy to fit like for like. only just fitted them so can't comment on it's performance but as I said in my title "it's a smoke alarm" so it's doing what it's supposed to do. test works so i am happy with this product.
Date published: 2017-05-21
Rated 5 out of 5 by from Great Product This was really easy to fit and looks great. It nice and compact and mechanism is easy to use.
Date published: 2017-05-15
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
  • y_2017, m_8, d_17, h_23
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_138
  • loc_en_GB, sid_81969, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_screwfix-ie