CALL OUR TEAM NOW 0800 612 6537 Also FREE from UK mobiles

Mains Powered Heat Alarm with Alkaline Back-up Battery - BRK 690MBX

Discontinued Product

The manufacturer has withdrawn from the European market and is no longer supplying compatible alternatives.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 600MBX range is the Kidde Firex series.

alternative product

Kidde Firex Mains Powered Alarms with Alkaline Battery

  • 230V mains powered with alkaline back-up battery
  • Available in Ionisation, Optical and Heat versions
  • Interlink with up to 24 units
  • Suitable for BS 5839-6: 2019 Grade D2 installations
  • Kitemarked and CE marked
  • Please note: alarms are sold individually
  • Also suitable for the 2022 Scottish legislation

£17.75 inc VAT

£14.79 ex VAT

View Product
Product Overview

Ideal for areas where a standard smoke alarm would be unsuitable, such as kitchens and garages, the BRK 690MBX is a mains powered heat alarm designed to detect rapid increases in room temperature. Kitemarked to the latest standards and with a 5 year manufacturer's warranty, the BRK 690MBX also benefits from multi-alarm interlink feature, meaning that it can be hard wire interlinked with up to 12 compatible smoke and heat alarms within a system.

  • Power: 230V mains powered with back-up battery
  • Backup Battery: 9V alkaline battery (included)
  • 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
  • Includes slimline twist-fit base suitable for flush mounting
  • CE marked and Kitemarked to BS 5446-2
  • Suitable for installations complying to BS 5839-6: 2019 Grade D2
  • Ideal for kitchens and garages where a smoke alarm would be unsuitable
  • Monitors rate of increase in room temperature
  • Up to 12 600MBX series smoke and heat alarms can be hard wire interlinked
  • An interlinked system provides the earliest possible warning of fire
  • Test button facility
  • Suitable replacement for the DETA 1155 and DETA 1115 Heat Alarms
  • Supplied with fixings; 2 x screws and 2 x rawl plugs
  • 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: for surface-mounted wiring such as trunking the base plate included with this alarm is not suitable; please see the BRK 790MRL with push-fit base instead.

Interlink

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
670MBX Ionisation Smoke Alarm Hard wire interlink
660MBX Optical Smoke Alarm Hard wire interlink
690MBX Heat Alarm Hard wire interlink
Technical Data
Product Code BK690MBX
Alternative Product Codes BK690MBX, 690MBX, DETA1155, 1155, DETA1115, 1115
Brand BRK
Back-Up Battery

9V Alkaline

Dimensions (HxDia)

58x140mm

Operating Temperature

+5°C to +38°C

Relative Humidity

10% to 85%

Sound Output

85dB

Warranty

5 Years

Weight 0.27kg
Product Datasheets
FAQs (14)
Q. I want to install an interlinked smoke alarm system throughout my home, but what type of smoke alarms do I need in different rooms?
A.

We recommend a heat alarm in the kitchen, optical alarms in living rooms and hallway and ionisation alarms on landings.

Q. Why do your mains powered alarms have batteries?
A.

All our mains powered alarms have a battery backup. Although mains powered alarms without this option do exist (BS5839 part 6 grade E), we regard them as far too dangerous, as a lot of fires are caused by electrical faults leaving the building unprotected against fire if the smoke alarms have no backup battery. With our mains powered alarms you will always be protected.

Q. What is the best way to test my alarm?
A.

We recommend testing alarms by pressing the test button built-in to the unit, as this is designed to simulate the detection of the target stimuli (usually smoke, heat, or CO) at the alarm sensor. You should test your alarms regularly to ensure they are protecting building occupants, preferably every week. For more detailed guidance, check the manual included with your alarm.

Q. How long do smoke alarms last before needing replacement?
A.

It is recommended that smoke alarms are replaced after 10 years. This is because the sensors in the smoke alarms become less sensitive and may not activate when a fire is present.

Q. Do you need an electrician to connect mains powered smoke alarms?
A.

It is necessary that an electrician installs mains powered smoke alarms.

Show All

Customer Reviews

4 customers have given this product an overall rating of 4.8 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: D C

EASY TO FIT GOOD PRODUCT

Published on: 24th November 2020

Rating: 5 / 5 Stars

Reviewed by: C A

Arrived safely and seems to work! Fitted my existing base as a replacement. Quick to fit.

Published on: 19th May 2019

Rating: 5 / 5 Stars

Reviewed by: M J

Nice unit...very easy to fit (as a refit)

Published on: 19th July 2017

Rating: 4 / 5 Stars

Reviewed by:

A little pricey but a great product, you get what you pay for.

Published on: 24th December 2015

Looking for more information?

If you have any questions or would like more information about this product you can ask one of our specialists.

Direct Telephone 01507 464181