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Mains Powered Radio-Interlinked Optical Smoke Alarm with Longlife Back-up Battery - Ei166RF

Discontinued Product

This product has been discontinued.

alternative product

Mains Radio-Interlinked Optical Smoke Alarm with Back-up - Ei3016RF

  • Power: 230V mains powered with back-up battery
  • Backup Battery: Self-charging battery
    • Warranty: 5 year warranty
    • Supplied with Ei3000MRF SmartLINK module
    • Radio-interlink with up to 12 devices
    • Extract real time data to their smart phone
    • CE and Kitemarked to BS EN 14604: 2005
    • Also suitable for both the Welsh and Scottish 2022 legislation

    £106.52 inc VAT

    £88.77 ex VAT

    View Product
    Product Overview
    This mains powered Radio-interlinked optical smoke alarm does not require any cable to connect with other Ei160 series smoke alarms and is ideal for extensions, small let properties and small businesses.
    • Mains powered radio-interlinked smoke alarms as a variation of the Ei166 optical smoke alarm
    • Each unit consists of a radio-frequency base-plate and the Ei166 optical smoke alarm sensor
    • Requires no cables between units
    • Can be powered from the nearest light fitting
    • Re-chargeable lithium battery backup guaranteed for 10 years for alarm.
    • 5 year warranty
    • A maximum of 12 units can be interconnected including:
    • Kitemarked to BS EN 14604:2005
    • Suitable for installations complying to BS 5839-6: 2013 Grade D, E and F
    • CE marked
    • Requires no cables between units 
    • Can be interlinked with heat and ionisation alarms 
    • With test and hush button
    • LED display to show correct power supply
    • Consists of a radio-frequency base-plate Ei168RC with a Ei166RC smoke alarm fitted to it.
    • Can transmit up to 30m in buildings
    • Built-in radioLINK repeater function allows for the RF signal to work around obstructions
    • Supplied with fixings; 2 x screws and 2 x rawl plugs

    The table below shows all the units that can interconnect with the EI168RC/Ei166RC.

    Compatible Alarms
    Model Number
    Type of unit
    Type of interconnection
    Ei168RC/Ei161RC Mains powered ionisation smoke alarm Radio-interlinked using the Ei168RC base
    Ei168RC/Ei164RC Mains powered heat 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 EI168RC166RC
    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 0.49kg
    Product Datasheets
    FAQs (4)
    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.

    Q. For mains powered Aico smoke and heat alarms, when the electricity supply fails and the back up battery takes over, please can you tell me how long the battery will last in this situation?

    For mains powered Aico alarms with a new, fully charged lithium back up battery, the battery would last approx. 3-6 months without a mains supply. For mains powered Aico alarms with a standard alkaline back up battery, the battery would last up to a year without mains supply. If the alarm has been installed with an Ei168RC radio frequency base, please note that the Ei168RC back up battery would last approx 2 months if the power fails.

    Customer Reviews

    2 customers have given this product an overall rating of 4.5 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: 4 / 5 Stars

    Reviewed by:

    product installed and working well.

    Published on: 9th March 2014

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