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Radio-Interlinked Heat Alarm - FireAngel WHT637

Discontinued Product

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

alternative product

Radio-Interlinked Battery Powered Heat Alarm - UltraFire UBH1RF

  • Battery: AA alkaline batteries (included)
  • Warranty: 5 year warranty
  • Large test and hush button
  • Wireless interlink up to 50 compatible alarms
  • Range of up to 35m in buildings
  • Suitable for BS 5839-6: 2019 Grade F2 installations
  • Certified to BS 5446-2:2003

£29.99 inc VAT

£24.99 ex VAT

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Product Overview

Using advanced heat sensing technology (also called Thermistek), the FireAngel WHT637 radio-interlinked heat alarm reacts quickly when significant rate-of-rise in temperature is detected. Ideal for areas where a smoke alarm could be prone to false triggering, e.g. kitchen or garage, the WHT637 is capable of wirelessly interlinking with up to 50 alarms using radio-frequency signal. Enabling all interlinked alarms to sound if one detects a fire, a wireless smoke and heat alarm system within the home would ensure you receive the earliest possible warning of fire.

Exclusive Extras from Safelincs

The FireAngel WHT637 Heat Alarm Kits are supplied as standard with some exclusive extras that make purchasing these alarms easier and more cost-effective, including:

Product Features

  • Battery powered heat alarm - 10 year sealed lithium battery
  • CE marked and Kitemarked to BS 5446-2
  • Single test and hush button
  • Can be wirelessly interlinked with up to 50 radio-interlinked alarms
  • An interlinked system provides the earliest possible warning of fire
  • Radio-frequency range: 200m in free space, up to 35m in buildings
  • Heat sensor provides quick detection of significant rate-of-rise in temperature
  • Locate function: helps you find the alarm that activated an interlinked system
  • Suitable for installations complying to BS 5839-6: 2019 Grade F1
  • Supplied with fixings; 2 x screws and 2 x rawl plugs
Interlink

The table below shows all the units that can interlink with the FireAngel radio-interlinked series.

Alarms from the Same Series

Model Number
Type of unit
Type of interlink
WST637 Optical Smoke Alarm Radio-interlinked
WHT637 Heat Alarm Radio-interlinked

Compatible Alarms

Model Number Type of unit Type of interlink
WST-230 Mains Powered Optical Smoke Alarm Radio-interlinked
WHT-230 Mains Powered Heat Alarm Radio-interlinked

Carbon Monoxide Alarms

Model Number
Type of unit
Type of interlink
W7-CO-10X Carbon Monoxide Alarm Radio-interlinked

Ancillary Products

Model Number
Type of unit
Type of interlink
W2-SVP-630 Wireless Strobe and Vibrating Pad Radio-interlinked
W2-LFS-630 Wireless Low Frequency Sounder Radio-interlinked
Technical Data
Product Code FAWHT637
Alternative Product Codes WHT637, WHT-637
Brand FireAngel
Battery Type

10 year sealed lithium battery

Dimensions (HxDia)

60x132mm

Operating Temperature

+54°C to +65°C

Relative Humidity

Up to 90%

Sound Output

85dB

Warranty

7 Years

Weight 0.26kg
Product Datasheets
FAQs (14)
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.

Q. Do batteries in radio-interlinked alarms expire quicker than those in normal alarms?
A.

Batteries in radio-interlinked alarms do expire quicker than in other smoke alarms. RF smoke alarms are, however, also available with a 10 year sealed long life lithium battery. This battery will last for the 10 year life of the smoke alarm.

Q. What sort of smoke alarm system would I need to install for a HMO?
A.

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.

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Key Product Features

Test and hush button built into the thermistor cover

Includes a wireless module for for easy interlinking

Status lights located around the thermistor cover

Screws and rawl plugs for installation are included

What's Included?

Every FireAngel FAWHT637 is supplied with the following components.

  • 1 x FireAngel WHT-630 wireless heat alarm
  • 1 x Sealed 10-year lithium battery
  • 1 x Screw fixing set (screws & rawl plugs)
  • 1 x Instruction manual

Excellent Warranty

This product is supplied with a 7 year manufacturers warranty as standard

Customer Reviews

10 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: 4 / 5 Stars

Reviewed by: K E

Fitted and tested fine Cannot give a proper review as it's a product that has to work over a long period of time, which has not yet elapsed.

Published on: 23rd December 2018

Rating: 5 / 5 Stars

Reviewed by: R M

Product was easy to fit and appears to be working well.

Published on: 17th October 2017

Rating: 5 / 5 Stars

Reviewed by: L C

Very easy to install

Published on: 31st July 2017

Rating: 5 / 5 Stars

Reviewed by: T M

very good service and great customer service i have now refere one of my landlords directly to you and will continue to refer others

Published on: 5th June 2017

Rating: 5 / 5 Stars

Reviewed by: S D

easy to configure this wireless into wired system

Published on: 22nd February 2017

Rating: 5 / 5 Stars

Reviewed by: P M

Excellent - just works

Published on: 13th January 2017

Rating: 4 / 5 Stars

Reviewed by: D K

Easy to set up

Published on: 19th September 2016

Rating: 4 / 5 Stars

Reviewed by: S P

Good

Published on: 27th March 2016

Rating: 5 / 5 Stars

Reviewed by: I H

Nice unit that's easy to install

Published on: 16th February 2016

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