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Mains Optical Smoke Alarm with Alkaline Battery Backup - Firehawk FH250BB

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£14.22 inc VAT
£11.85 ex VAT
Product Overview

The mains powered Firehawk FH250BB is an optical smoke alarm with an alkaline battery backup, which is ideal for Grade D2 installations in locations such as living areas, bedrooms, hallways and landings. The push-fit base makes for quick and easy installation of the smoke alarm. In one system, this alarm can interlink with up to 14 other Firehawk smoke alarms from the FH250 and FH450 ranges. This alarm comes with a 6 year manufacturer's warranty for peace of mind, as well as a test and silence button which covers the face of the alarm for ease of use. Featuring TSE-Technology and an X-Profile sensing chamber, this reduces the number of false alarms and ensures that that slow smouldering fires are detected quickly.

  • 230V mains powered with alkaline battery backup
  • 3 x AAA alkaline battery backup (included)
  • 6 year manufacturer's warranty
  • Hardwire interlink up to 15 Firehawk smoke and heat alarms in one system
  • Optical smoke sensor suitable for livings areas, hallways, landings and bedrooms
  • Fast-Fix design for quick installation using Push-Fit connectors
  • X-Profile sensing chamber to ensure quick detection of smouldering fires and reduced false alarms
  • TSE Technology for improved fire detection
  • End of life warning chirp can be silenced up to 10 hours
  • Combined, large test and silence button for ease of use
  • Suitable for installations complying to BS 5839-6 Grade D2
  • CE marked and approved to EN 14604: 2005

The table below shows all alarms which can interlink via cable with the Firehawk FH250BB mains powered heat alarm.

Model Description Interlink
FH250BB Mains Powered Optical Smoke Alarm with Alkaline Battery Backup Hardwire
FH450BB Mains Powered Heat Alarm with Alkaline Battery Backup Hardwire
FH250RB Mains Powered Optical Smoke Alarm with Sealed Lithium Battery Backup Hardwire
FH450RB Mains Powered Heat Alarm with Sealed Lithium Battery Backup Hardwire
Technical Data
Product Code FIFH250BB
Alternative Product Codes FH250BB
Brand Firehawk
Back-Up Battery

3 x AAA Alkaline Replaceable Batteries

Dimensions (HxDia)

38 x 87mm

Operating Temperature

0°C to 40°C

Power Type

230V Mains Powered with Back-up Battery

Relative Humidity

< 85%

Sound Output


Storage Temperature

5°C to 30°C


6 years

Weight 0.25kg
Product Datasheets

Pricing & Availability

Model Stock Price
Product Code: FIFH250BB Stock Level:
Available to order Expected dispatch: 6th Dec

£14.22 inc VAT

£11.85 ex VAT

Delivery Options

The following delivery options are available on this product.

Economy Delivery

£4.99 inc VAT - Orders will be delivered in 8-10 working days by Hermes

Expedited Delivery

£8.10 inc VAT - Orders will be delivered in 6-7 working days by Hermes

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