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Mains Radio-Interlink Ionisation Smoke Alarm with Lithium Back-up - BRK 770RF

Discontinued Product

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

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Product Overview

Quick to detect fast flaming fires, the BRK 770RF is a mains powered ionisation smoke alarm with a radio-frequency base plate, designed to achieve wireless interlink with multiple units. Fitted with a sealed lithium back-up battery to power the alarm after a mains failure, the BRK 770RF is ideal for applications where changing batteries and interlink cables would be inconvenient.

  • 230V mains powered with sealed lithium back-up battery (included)
  • Kitemarked to BS EN 14604
  • Suitable for installations complying with BS 5839-6: 2019 Grade D1
  • Consists of a BRK 770MRL ionisation smoke 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 upstairs landing areas
  • Quick to detect fast flaming fires
  • Test and hush button feature
  • Radio-frequency range: 150m in free space, 30m in buildings
  • 5 year manufacturer's warranty
Technical Data
Product Code BK770RF
Alternative Product Codes BK770RF, 770RF, 770
Brand BRK
Back-Up Battery

Self-charging Lithium Battery

Dimensions (HxDia)

Ionisation Smoke Alarm: 53x140mm

RF Base: 30x140mm

Operating Temperature

+5°C to +38°C

Relative Humidity

10% to 85%

Sound Output

85dB

Warranty

5 Years

Weight 0.45kg
Product Datasheets
FAQs (13)
Q. Do I need an ionisation or optical smoke alarm?
A.

We recommend using an optical smoke alarm in hallways, as these are less likely to go off because of cooking fumes from a connected kitchen. Optical smoke alarms are also ideal for living rooms, dining rooms, bedrooms, as they are good at detecting smouldering fires from soft furnishings. For landings we recommend ionisation alarms. Heat alarms are designed for kitchens and garages. No alarms should be installed in bathrooms.

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. Can I put my smoke alarm on the wall, or must it be mounted on the ceiling?
A.

The best location to install your smoke alarm is in the centre of the ceiling rather than on the wall. During a fire, smoke initially rises and then spreads to the sides of the room. By installing the alarm on the ceiling, this ensures that you receive the earliest possible warning of a fire.

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.

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