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

4.7 out of 5 stars
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From: £22.79 inc VAT
£18.99 ex VAT
Product Overview

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
  • Both alarms feature a large central test / hush button
  • A total of 50 compatible units can be interlinked
  • Suitable for installations complying to BS 5839-6: 2019 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
Technical Data
Product Code

Optical Smoke Alarm:  UFUBS1RF

Heat Alarm:  UFUBH1RF

Brand UltraFire
Battery Type

2 x AA alkaline

Dimensions (HxDia)

UBS1RF Smoke Alarm: 35 x 125mm

UBH1RF Heat Alarm: 40 x 102mm

Operating Temperature

0°C to +40°C

Relative Humidity

UBS1RF Smoke Alarm: Up to 93%

UBH1RF Heat Alarm: 10% to 95%

Sound Output



10 Years

Weight 0.18kg
Product Datasheets
FAQs (1)
Q. What sort of smoke alarm system would I need to install for a HMO?

BS 5839-6 recommends that one or two storey HMOs with an individual floor area of no more than 200sqm (not the total of both floors) should have a Grade D smoke alarm system installed. Grade D refers to mains powered smoke alarms with a back up battery power supply. The alarms can be interlinked either by wire or by radio signal and the system does not require a separate fire alarm panel. For HMOs of 3 storey or higher, a Grade A panel system would need to be installed. This can cover the whole of the building, or can be used just for the communal areas with a separate Grade D system installed for the individual dwellings. For both applications, the level of cover should be a minimum of LD3 (in all escape routes) but this may change according to the fire risk assessment.

Pricing & Availability

Model Stock Price
Optical Smoke Alarm
Product Code: UFUBS1RF
Stock Level:
More than 20 in stock Expected dispatch: Tomorrow

£22.79 inc VAT

£18.99 ex VAT

Heat Alarm
Product Code: UFUBH1RF
Stock Level:
More than 20 in stock Expected dispatch: Tomorrow

£22.79 inc VAT

£18.99 ex VAT

Delivery Options

The following delivery options are available on this product.

Standard Delivery

£3.19 inc VAT - Orders will be delivered in 2-3 working days with Evri

Next Working Day Delivery

£6.19 inc VAT - Orders will be delivered the next working day with Evri

For dispatch today order within

Excellent Warranty

This product is supplied with a 10 year manufacturers warranty as standard

Customer Reviews

19 customers have given this product an overall rating of 4.7 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: A B

Appears to do the job, Easy to link

Published on: 4th December 2023

Rating: 5 / 5 Stars

Reviewed by: B M

Easy to use and install

Published on: 3rd September 2023

Rating: 5 / 5 Stars

Reviewed by: A B

Easy to link.

Published on: 1st April 2023

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