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Mains Powered Radio-Interlinked Heat Alarm with Lithium Back-up - BRK 790RF

Discontinued Product

This product has been discontinued and is no longer available to buy.

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Product Overview

Fitted with a sealed lithium back-up battery, the BRK 790RF is a mains powered radio-interlinked heat alarm designed for kitchen areas and garages. The radio-frequency base plate supplied with the heat alarm enables the unit to wirelessly interlink with multiple smoke and heat alarms within the same system, providing the earliest possible warning of fire. If one alarm is activated it will send a wireless signal to all other interlinked alarms, causing them to also sound.

  • 230V mains powered with sealed lithium back-up battery (included)
  • Kitemarked to BS 5446-2
  • Suitable for installations complying with BS 5839-6: 2019 Grade D1
  • Consists of a BRK 790MRL heat alarm and a radio-frequency base plate
  • Wireless interlinking - requires no cables between units
  • Up to 50 RF smoke and heat alarms can be interlinked within a single system
  • Suitable for kitchens and garages
  • Detects rapid increase in room temperature
  • Test button facility
  • Radio-frequency range: 150m in free space, 30m in buildings
  • 5 year manufacturer's warranty
Technical Data
Product Code BK790RF
Alternative Product Codes BK790RF, 790RF, 790
Brand BRK
Back-Up Battery

Self-charging Lithium Battery

Dimensions (HxDia)

Heat Alarm: 68x140mm

RF Base: 30x140mm

Operating Temperature

+5°C to +38°C

Relative Humidity

10% to 85%

Sound Output

85dB

Warranty

5 Years

Weight 0.51kg
Product Datasheets
FAQs (18)
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. Are there any restrictions to the distance a radio-interlinked smoke alarm will work?
A.

Most radio-interlinked alarms have a range of 150 meters in an open space and up to 30 meters in buildings. The thickness of the walls and partitions will affect the travel distance of the signal.

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.

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