The BRK 770MRL (also known as 670MRL) mains powered ionisation smoke alarm provides quick detection of fast flaming fires and is typically installed in upstairs landing areas. Fitted with a sealed self-charging lithium back-up battery, the 770MRL does not require a battery change for the life of the alarm, making it ideal for properties where replacing batteries would be inconvenient. Up to 12 alarms from the BRK 700MRL series can be interlinked by wire within a single system.
Power: 230V mains powered with back-up battery
Backup Battery: Re-chargeable lithium battery lasts the lifetime of your alarm - GUARANTEED
Warranty: 5 year manufacturer's warranty
Please note that BRK and First Alert are no longer manufacturing new stock for the European Market and while the products may have a 2018/19 manufacturing date they still provide a full 10 year lifespan and full warranty cover from date of purchase
CE marked and Kitemarked to BS EN 14604
Suitable for installations complying to BS 5839-6: 2019 Grade D1
Quick to respond to fast flaming fires
Suitable for installing in upstairs landing areas
Up to 12 alarms from the 700MRL series can be hard wire interlinked
An interlinked system provides the earliest possible warning of fire
This alarm is also suitable for the updated 2022 Scottish legislation for fire alarms in homes
Please note: this product is not a direct upgrade from the 670MBX smoke alarm. Upgrading from a BRK 600MBX series alarm featuring an alkaline battery and twist-on base may require rewiring by a qualified electrician.
Q. Can air purifiers affect ionisation smoke alarms?
A.
Yes, air purifiers may cause ionisation smoke alarms to sound falsely.
Q. What smoke alarm should I use in a bedroom with an en suite bathroom?
A.
It is usually recommended to install an optical smoke alarm in a bedroom. This is because optical smoke alarms are slightly quicker at detecting slow smouldering fires that can originate from upholstery type materials and over-heated wiring. Also, an optical smoke alarm would be less likely to sound a false alarm than an ionisation would, if steam/water droplets were present from the bathroom. Detectors should be installed as central to the room as possible; however for your application I would also consider the position of the en suite to make sure that the detector is not in the direct path of the joining door. This is just to try and avoid the chances of a false alarm. No detector is designed for use in bathroom areas.
Q. How do I safely dispose of my old smoke alarms?
A.
Safelincs is signed up to Valpak's WEEE (Waste Electrical and Electronic Equipment) Distributor Take-Back Scheme (Registration ID: 7370). Private households can therefore drop off their electronic and electrical fire safety waste at their municipal recycling centre when they are purchasing new products from us. To find your nearest recycling centre, please visit www.recycle-more.co.uk.
Q. Can the mains powered smoke alarm range be connected to mains power via the lighting circuit?
A.
Yes, hard-wired mains powered alarms can be wired to the unswitched live feed of the nearest frequently used lighting circuit.
Q. How long do the batteries last in smoke alarms?
A.
The 9V alkaline batteries last 12-18 months. Lithium batteries will usually last 5x longer than their alkaline counterparts, achieving around 5 years lifetime. Some lithium cells are also rechargeable, and when used in a mains-powered alarm may last for the entire functional lifespan of the alarm. Newer alarm models may also feature a "sealed" lithium battery. These batteries are specialist components which are designed to not be removed or need replacing by the user, and have been tested by the alarm manufacturer to ensure they last for the lifetime of the alarm.
Please Note: the actual lifetime of your batteries depends on how often the alarms are tested or activated, as sounding the alarm draws more power than when the alarms are "waiting" to detect fire. You should also read your alarm's manual to make sure you only use the recommended types and brands of batteries, as failing to follow these instructions may cause the alarm to malfunction, not alerting you in the event of a fire, and might also invalidate the warranty.
4 customers have given this product an overall rating of 5 out of 5
Reviews by real customers
All of our product reviews are written by real customers that have purchased this product from us and are published without modification.
Rating: 5 / 5 Stars
Reviewed by: K S
Great product and simple to install onto an existing plate if you are replacing an old product such as DICON
Watch out for the battery tag, there is a clear one which implies you pull it out and it is then connected. In actual fact you need to take the battery out and connect it. Not sure what the first tag is for.
Published on: 18th March 2019
Rating: 5 / 5 Stars
Reviewed by: M C
Exellant replacement for my old smoke alarms which were the type that needed the battery replacing every few years.
Published on: 5th November 2018
Rating: 5 / 5 Stars
Reviewed by: A T
Does what it says on the box!
Published on: 14th October 2018
Rating: 5 / 5 Stars
Reviewed by: M J
Fits in place of an older model. does the job I need it to do.
Published on: 27th April 2016
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