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Mains Powered Ionisation Smoke Alarm with Self-Charging 10 Year Back-up Battery - BRK 770MRL
Discontinued Product - No Compatible Replacement
Please Note: The manufacturer has withdrawn from the European market and is no longer supplying compatible alternatives. Since it is not possible to interlink alarms from different manufacturers, the recommended replacement for the whole discontinued BRK 700MRL range is the Aico Ei3000 series.
View alternative products
Discontinued Alarms
A list of replacement smoke and heat alarms for discontinued Kidde Safety and Ei Electronics alarm models.
Product Overview
Interlink
Technical Data
FAQs (1)
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
- Test and hush button facility
- Easy to install push-fit base plate
- Product warranty and life commences from date of purchase
- 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.
The table below shows all the units that can interlink with the BRK mains powered smoke and heat alarms.
Alarms from the Same Series
| Model Number | Type of unit | Type of interlink |
|---|---|---|
| 770MRL | Ionisation Smoke Alarm | Hard wire interlink |
| 760MRL | Optical Smoke Alarm | Hard wire interlink |
| 790MRL | Heat Alarm | Hard wire interlink |
| Product Code | BK770MRL |
|---|---|
| Alternative Product Codes | BK770, 770, 770MRL, BK770MRL |
| Brand | BRK |
| Back-Up Battery | Self-charging Lithium Battery |
| Dimensions (HxDia) | 53x140mm |
| Operating Temperature | +5°C to +38°C |
| Relative Humidity | 10% to 85% |
| Sound Output | 85dB |
| Warranty | 5 Years |
| Weight | 0.28kg |
| Product Datasheets |
Q. What sort of smoke alarm system would I need to install for a HMO?
A.
BS 5839-6 recommends that one or two storey HMOs with an individual floor area of no more than 200sqm (not the total of both floors) should have a Grade D smoke alarm system installed. Grade D refers to mains powered smoke alarms with a back up battery power supply. The alarms can be interlinked either by wire or by radio signal and the system does not require a separate fire alarm panel. For HMOs of 3 storey or higher, a Grade A panel system would need to be installed. This can cover the whole of the building, or can be used just for the communal areas with a separate Grade D system installed for the individual dwellings. For both applications, the level of cover should be a minimum of LD3 (in all escape routes) but this may change according to the fire risk assessment.
Customer Reviews
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:
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:
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:
Does what it says on the box!
Published on: 14th October 2018
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