CALL OUR TEAM NOW 0800 612 6537 Lines open today 8:30am - 12:30pm

Mains Powered Radio-Interlinked Heat Alarm with Lithium Back-up Battery - Ei164RF

Discontinued Product

This product has been discontinued.

alternative product

Mains Radio-Interlinked Heat Alarm with Back-up - Ei3014RF

  • 230V mains powered heat alarm with rechargeable lithium backup battery
  • Supplied with SmartLINK module for radio-interlinking with up to 12 devices
  • CE and Kitemarked to BS 5446-2: 2003
  • Suitable for BS 5839-6: 2019 Grade D1 installations
  • Contains AudioLINK allowing users to extract real time data to their phone
  • 5 year manufacturer's warranty
  • Also suitable for the 2022 Scottish legislation

£107.60 inc VAT

£89.67 ex VAT

View Product
Product Overview
This mains powered Radio-interlinked heat alarm does not require any cables to connect with other Ei160 series smoke and heat alarms and is ideal for extensions, small let properties and small businesses.
  • Mains powered radio-interlinked smoke alarms as a variation of the Ei164 heat alarm
  • Each unit consists of a radio-frequency base-plate and the Ei164 heat alarm sensor
  • Requires no cables between units
  • Can be powered from the nearest light fitting
  • Re-chargeable lithium battery backup guaranteed for 10 years
  • 5 year warranty
  • A maximum of 12 units can be interconnected
  • Alarms that can be interconnected include:
    - Ei168RC/Ei161, Ei168RC/Ei166, Ei168RC/Ei2110
  • Suitable for installations complying to BS 5839-6: 2013 Grade D, E and F
  • Kitemarked to BS EN 14604:2005
  • CE marked
  • With test and hush button
  • LED display to show correct power supply
  • Can be interlinked with optical and ionisation alarms 
  • Ideal for extensions and decorated properties.
  • Can transmit up to 30m in buildings
  • Built-in radioLINK repeater function allows for the RF signal to work around obstructions

The table below shows all the units that can interconnect with the EI168RC/Ei164RC.

Compatible Alarms
Model Number
Type of unit
Type of interconnection
Ei168RC/Ei161RC Mains powered ionisation smoke alarm Radio-interlinked using the Ei168RC base
Ei168RC/Ei166RC Mains powered optical smoke alarm Radio-interlinked using the Ei168RC base
Ei168RC/Ei2110 Mains powered multi sensor smoke & heat alarm Radio-interlinked using the Ei168RC base
Ei605TYCRF Battery powered optical alarm Radio-interlinked
EI603TYCRF Battery powered heat alarm Radio-interlinked
Carbon Monoxide Alarms
Model Number
Type of unit
Type of interconnection
Ei208WRF Battery powered CO detector Radio-interlinked
Ei262 Mains powered CO detector Radio-interlinked
Ancillary Products
Model Number
Type of unit
Type of interconnection
Ei407 Wireless Manual Call Point Radio-interlinked
Ei411H Wireless Locate, Hush and Remote test switch Radio-interlinked
Ei412 Wireless Fire and CO Alarm Control Switch Radio-interlinked
Ei450 Wireless Fire and CO Alarm Controller Radio-interlinked
Technical Data
Product Code EI168RC164RC
Brand EI Electronics
Back-Up Battery

Rechargeable Lithium

Dimensions (HxDia)


Operating Temperature

0°C to 40°C

Relative Humidity

15% to 95% Relative Humidity

Sound Output


Weight 0.42kg
Product Datasheets
FAQs (6)
Q. How can we test the alarm to make sure it is working?

The manufacturer's recommendation is to test the alarm by pressing the test button. This will simulate a heat input at the heat sensor. You can also test it with a hair dryer but make sure that the hairdryer is kept away at a suitable distance from the alarm. Do not attempt to test the alarm by using open fire or excessive heat as this may damage the unit.

Q. Is it possible to have a heat alarm mains powered radio interlinking alarm interconnect with battery powered radio-interlinked alarms?

Yes this entirely possible. The Ei140 series with RF base is mains powered and these are compatible to interlink with the battery operated Ei3100 series. Please view the interconnection overview on either of these alarms for further details.

Q. How do you wire in the Ei140/Ei160 series of smoke alarms?

To wire the units correctly you would use 2 core and earth cable to the first unit and 3 core and earth to the interconnected units. The alarms do not have to be earthed but a brass screw connector is provided so that the earth can be safety terminated.

Q. I have added an Ei168RC164RC wireless linked heat detector to my garage some time after the installation of various other wireless Ei160 detectors in the house. What do I have to do to get the system to recognise the new detector please?

To get the Ei168RC164RC to communicate with the existing alarms, you would need to housecode all the units again. Press the housecode button on the new Ei168RC base and on each of the existing units.

Q. Please could you explain how the repeater function works on the Aico/Ei radio interlinked detectors.

Hello. The radioLINK repeater function allows the smoke alarm to "repeat" the radio frequency signal around obstructions. This stops the signal from becoming blocked and ensures that all interlinked alarms can be reached. This repeater function is built-in to the the Ei168RC radioLINK base (with Ei140, Ei160 or Ei2110 alarm), the Ei600 series of radio interlinked battery powered smoke and heat alarms as well as the Ei262 and Ei208WRF carbon monoxide alarms as standard. When house coded, the system works itself out which alarms are to act as repeaters - it's not something you set up yourself.

Show All

Customer Reviews

2 customers have given this product an overall rating of 5 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:

Excellent service from start to finish - thank you

Published on: 27th July 2015

Rating: 5 / 5 Stars

Reviewed by:

Easy to install

Published on: 15th September 2014

Looking for more information?

If you have any questions or would like more information about this product you can ask one of our specialists.

Live Chat Available Now
Direct Telephone 01507 464181


Colour Scheme


Pricing Display



By continuing to browse this site you agree to the use of cookies.