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Radio-Interlinked Battery Powered Smoke & Heat Alarms - UltraFire UB1RF Series

Front view of the ultrafire radio interlinked battery optical smoke alarm showing its circular shape and central sensor area
4.8 out of 5 stars

20+ In Stock

Estimated dispatch: Monday 8th June
Qty: 1

£22.79 inc VAT

£18.99 ex VAT

Qty: 2

£21.59 inc VAT

£17.99 ex VAT

Standard Delivery

Will usually be delivered in 2-3 working days

£4.20 inc VAT

Next Day Delivery

Will usually be delivered the next working day

£7.00 inc VAT

UltraFire battery powered heat and optical smoke alarms can be radio-interlinked with each other, up to a total of 50 units, to create a wireless alarm system within your home. Powered by two 1.5V alkaline AA batteries, these alarms have a wireless range of up to 100m in open air and 35m indoors. Heat alarms are designed for use in areas prone to false alarms caused by dust or steam and cooking fumes, such as kitchens, garages and unconverted loft spaces. Optical smoke alarms are less susceptible to false alarms caused by cooking fumes, making them suitable for installation near (but not in) kitchens as well as in living rooms, bedrooms, hallways, and landings. Optical smoke alarms are also suitable for rooms which have traditionally been protected by ionisation alarms.

  • Battery powered alarms – AA batteries included
  • If one alarms detects smoke / fire, all alarms in the system will sound
  • CE marked, certified and Kitemarked
    • Smoke Alarm: certified to
    • Heat Alarm: Kitemarked to
  • Both alarms feature a large central test / hush button
  • A total of 50 compatible units can be interlinked
  • Suitable for installations complying to Grade F2
  • Digital 'house coding' prevents interference from neighbouring systems
  • RF range of 35m in buildings (100m outdoors)
  • No central alarm panel or master unit required
  • 10 Year Manufacturer Warranty
  • Supplied with fixings: 2 x screws and 2 x rawl plugs
  • Alarms sold separately
Customer Reviews

Customer Reviews (40)

4.8 out of 5 stars

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

Reviewed by

S C

Published on

8th May 2026

Good radio interlinked alarm at good price
Fast delivery

Applies to option(s): Heat Alarm

Rating: 5 / 5

Reviewed by

S C

Published on

8th May 2026

Good radio interlinked alarm at good price
Fast delivery

Applies to option(s): Optical Smoke Alarm

Rating: 5 / 5

Reviewed by

D R

Published on

1st September 2025

Great product, easy to install

Applies to option(s): Optical Smoke Alarm

Rating: 5 / 5

Reviewed by

I P

Published on

31st May 2025

They have enabled us to amalgamate 8 buildings on to one system without wires so that we can be made aware of issues wherever we are. Excellent.

Applies to option(s): Optical Smoke Alarm

Rating: 5 / 5

Reviewed by

M F

Published on

23rd September 2024

Works as it should

Applies to option(s): Optical Smoke Alarm

FAQs

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Technical Data

Technical Data

Product Code UFUBS1RF
Brand UltraFire
Battery Type AA Batteries
British Standard Grade Grade F2: Battery Powered (replaceable)
Colour White
Connection Radio-Interlink
Display LED Indicators
Equipment Type Smoke Alarm
Fixing Options Screws (included)
Installation Position Ceiling
Material Plastic
Maximum Number of Linked Devices 50 Devices
Operating Temperature 0°C To +40°C
Power Type Battery Powered
Positioning Bedrooms
Hallways
Living Rooms
Product Range UltraFire RF
Radio Frequency Range 35 Metres
Radio Linking Frequency 868.499Mhz
Recyclable Yes - Valpak's WEEE Distributor Take-back Scheme
Relative Humidity Up To 93%
Sensor Type Optical
Sound Level 85dB
Suitability Home
Warning Type Audible - Alarm Sounder
Warranty 10 Years
Dimensions (Unit)
  • Height: 35mm
  • Diameter: 125mm
Weight 180g
Datasheets