Ei3105RF Radio-Interlinked Optical Smoke Alarm - Safelincs - Approved supplier for Ei Electronics
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Radio-Interlinked Battery Powered Optical Smoke Alarm - Ei3105RF

More than 20 in stock Expected dispatch: Today
22 Customer Reviews
£39.59 inc VAT
£32.99 ex VAT
Product Overview
The Ei3105RF is an entirely wireless, interlinking optical smoke alarm from the Ei3100 series. If one alarm detects smoke, all alarms go off to give maximum warning time
  • Battery: 9V alkaline battery included
  • Warranty: 5 year Warranty
  • Wireless, interlinking smoke alarm. No base plate required
    • A maximum of 12 units can be interlinked
    • Can interlink with all other EI radio-interlinked alarms (Please note: only the test function of accessories Ei411H and Ei410 will work with this unit)
    • Kitemarked to BS EN 14604:2005
    • Suitable for installations complying to BS 5839-6: 2013 Grade F
    • CE marked
    • Suitable for home or office
    • RF range 150 metres (minimum) in free space and up to 30 metres in buildings. Larger buildings can easily be covered, as the units can act as repeaters (daisy-chaining)
    • Alarms that can be interlinked include:
      -   Ei3100RF, Ei3103RFU
    • Digitally coded to avoid interference with neighbouring systems
    • Hush button for false alarm control
    • Auto self-test feature continually monitors the sensor every 40 seconds for additional safety
    • No central alarm panel needed
    • Optional longlife lithium battery upgrade
    • Supplied with fixings for ceiling mounting
    • Please Note: These alarms are sold as individual units
    Interlink

    The table below shows all the units that can interlink with the EI3105RF.

    Smoke and Heat Alarms - Radio

    Model Number
    Type of Unit
    Type of Interlink
    Ei3014 / Ei3014RF Mains Powered Heat Alarm - Sealed Lithium Hardwire or Radio Interlink
    Ei3016 / Ei3016RF Mains Powered Optical Smoke Alarm - Sealed Lithium Hardwire or Radio Interlink
    Ei3024 / Ei3024RF Mains Powered Optical & Heat Alarm - Sealed Lithium Hardwire or Radio Interlink
    Ei3028 / Ei3028RF Mains Powered Heat & Carbon Monoxide Alarm - Sealed Lithium Hardwire or Radio Interlink
    Ei2110e / Ei2110eRF Mains Powered Multi Sensor Smoke & Heat Alarm - Sealed Lithium Hardwire or Radio Interlink
    Ei161e / Ei161eRF Mains Powered Ionisation Smoke Alarm - Sealed Lithium Hardwire or Radio Interlink
    Ei164e / Ei164eRF Mains Powered Heat Alarm - Sealed Lithium Hardwire or Radio Interlink
    Ei166e / Ei166eRF Mains Powered Optical Smoke Alarm - Sealed Lithium Hardwire or Radio Interlink
    Ei141 / Ei168RC141RC Mains Powered Ionisation Alarm - 9V Alkaline Hardwire or Radio Interlink
    Ei144 / Ei168RC144RC Mains Powered Heat Alarm - 9V Alkaline Hardwire or Radio Interlink
    Ei146 / Ei168RC146RC Mains Powered Optical Smoke Alarm - 9V Alkaline Hardwire or Radio Interlink
    Ei3100RF Battery Powered Ionisation Smoke Alarm - 9V Alkaline Radio Interlink
    Ei3103RF Battery Powered Heat Alarm - 9V Alkaline Radio Interlink
    Ei3105RF Battery Powered Optical Smoke Alarm - 9V Alkaline Radio Interlink
    Ei603RF Battery Powered Heat Alarm - Sealed Lithium Radio Interlink
    Ei650RF Battery Powered Optical Smoke Alarm - Sealed Lithium Radio Interlink

    Carbon Monoxide Alarms

    Model Number
    Type of unit
    Type of interlink
    Ei3018 / Ei3018RF Mains Powered Carbon Monoxide Alarm - Sealed Lithium Hardwire or Radio Interlink
    Ei3028 / Ei3028RF Mains Powered Heat & Carbon Monoxide Alarm - Sealed Lithium Hardwire or Radio Interlink
    Ei262 Mains Powered Carbon Monoxide Alarm - Sealed Lithium Hardwire or Radio Interlink
    Ei261 Mains Powered Carbon Monoxide Alarm - Sealed Lithium Hardwire Interlink
    Ei208WRF Battery Powered Carbon Monoxide Detector - Sealed Lithium Radio Iinterlink

    Ancillary Products

    Model Number
    Type of unit
    Type of interlink
    Ei170RF Mains Powered Strobe and Vibration Pad for the Hearing Impaired - Sealed Lithium Radio Interlink
    Ei407 Battery Powered Manual Call Point - Sealed Lithium Radio Interlink
    MCP401RC Mains Powered Manual Call Point Hardwire Interlink
    Ei450 Battery Powered Fire and CO Alarm Controller - Sealed Lithium Radio Interlink
    Ei411H Battery Powered Locate, Silence & Test Control Switch - Sealed Lithium Radio Interlink
    Ei410TRF Battery Powered Test Remote - Sealed Lithium Radio Interlink (Ei3100RF Series)
    Ei1529RC Mains Powered Locate, Silence & Test Control Switch Hardwire Interlink
    Ei159 Mains Powered Smoke Alarm Locator Switch Hardware Interlink
    Ei428 Mains Powered 5A Relay Module Radio Interlink
    Ei128R Mains Powered 5A Relay Module Hardwire Interlink
    Ei128RBU Mains Powered 5A Relay Module with Lithium Backup Battery Hardwire Interlink
    Y03 Mains Powered Multi Frequency Sounder Hardwire Interlink (via relay)
    SAB300C Mains Powered Flashing Xenon Strobe (Clear) Hardwire Interlink (via relay)
    SAB300R Mains Powered Flashing Xenon Strobe (Red) Hardwire Interlink (via relay)

    Wiring Explained

    Mains powered Ei Electronics smoke and heat alarms require a 230V AC power supply and up to 12 alarms can be hardwire interlinked in one system.

    To obtain a mains power supply, each alarm can be connected to the nearest lighting circuit using 2 core and earth cable with a separate, dedicated interlink cable connecting alarms where applicable. However, if possible it is recommended that any alarms connected via interlink cable are all powered from a dedicated circuit from the distribution board using 3 core and earth cable for safety during maintenance, as the interlink cable will carry power from live alarms on other power circuits. Please see the diagram below:-

    Wiring Mains Powered Alarms

    Technical Data

    Technical Data

    This is the technical data for the Radio-Interlinked Battery Powered Optical Smoke Alarm - Ei3105RF.

    Product Code EI3105RF
    Alternative Product Codes Ei3105, Ei3105RF, ei3105f
    Weight 0.22kg
    Dimensions (HxWxD) 140x120x45mm
    Battery Type 9V Alkaline
    Sound Output 85dB (minimum) at 3m
    Temperature Range 0 to 40°C
    Humidity Range 15% to 95% Relative Humidity

    Product Datasheets

    The following datasheets are available for this product.

    FAQs (13)

    Q. Do the Ei3100RF alarms require anything other than fixing to the ceiling to install them?

    A. No, with this series of radio interlinked alarms there is nothing other than pressing the house code button required to install them.

    Q. If the radio interlinking signal on one unit fails will the units still work as stand alone units.

    A. Yes, should the radio interlinking signal fail the units will continue to sound independently should they detect a fire.

    Q. Can a wireless router interfere with the radio interlinked alarms?

    A. A wireless router is very unlikely to interfere with the signal of your radio interlinked alarms, as the RF signal of the smoke alarms is digitally coded.

    Q. Do the radio interlinked units give out a constant signal all the time and does this decrease the battery life more than a non-interlinked alarm?

    A. Yes, radio interlinked alarms are periodically sending and receiving signals from other units in the network and therefore the life of the battery is reduced. Units with alkaline batteries should have the batteries are changed annually [unless they are fitted with a sealed 10 year battery as eg in the Ei600RF series].

    Q. Do I need to take out all the batteries in my radio-interlinked alarms before adding a new alarm into the system?

    A. No, you do not need to remove all the batteries. Just simply press the house code button on all the units. Please ensure that the batteries have full power as this could render the house code process incomplete.

    Show all FAQs

    Pricing & Availability

    Model Stock Price
    Product Code: EI3105RF Stock Level:
    More than 20 in stock Expected dispatch: Today
    Price:

    £39.59 inc VAT

    £32.99 ex VAT

    Customer Reviews

    22 customers have 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: MR

    Works fine, but secure syncing with other units tricky to verify. Works fine, but the yellow LED that flashes to confirm radio sync is too quick, and with 12 units connected, it's almost impossible to confirm you are secure with the other alarms - although this is just a security gizmo - all alarms will sound if in radio range of each other. Slow down the flash rate please EI, with a long pause between the count. Better still, a bi-colour LED to indicate the count start ...

    Published on: 1st July 2019

    Rating: 4 / 5 Stars

    Reviewed by: RB

    Good product from a trusted company I have used these smoke alarms before and only replaced them due to age.

    Published on: 14th July 2018

    Rating: 5 / 5 Stars

    Reviewed by: SD

    Product works as intended, easy to install, fast delivery

    Published on: 27th April 2018

    Rating: 3 / 5 Stars

    Reviewed by: GW

    Does what it is supposed too.

    Published on: 19th April 2018

    Rating: 5 / 5 Stars

    Reviewed by: ML

    Excellent

    Published on: 21st February 2018

    Rating: 5 / 5 Stars

    Reviewed by: JP

    Good quality, and in our weekly tests so far no failures yet

    Published on: 2nd December 2017

    Rating: 5 / 5 Stars

    Reviewed by: PM

    Quick delivery, well packaged

    Published on: 13th November 2017

    Rating: 5 / 5 Stars

    Reviewed by: TH

    Radio Interlinked is it's best selling point works out of the box

    Published on: 25th August 2017

    Rating: 4 / 5 Stars

    Reviewed by: RH

    Easy to install and works perfectly

    Published on: 6th May 2017

    Rating: 5 / 5 Stars

    Reviewed by: MS

    As described after advice over the phone.

    Published on: 2nd October 2016

    Rating: 5 / 5 Stars

    Reviewed by: GT

    iam very pleased with the alarm easy to install and to pair great no problem aiarm it does what it says on the tin very pleased

    Published on: 10th May 2016

    Rating: 5 / 5 Stars

    Reviewed by: NL

    A great service - very prompt delivery and a very good experience

    Published on: 31st March 2016

    Rating: 4 / 5 Stars

    Reviewed by: -

    Easy to install and set up

    Published on: 14th November 2015

    Rating: 5 / 5 Stars

    Reviewed by: -

    good

    Published on: 23rd September 2015

    Rating: 5 / 5 Stars

    Reviewed by: -

    Easy installation, configuration & good value. Purchased this as an add-on to the EI3100KIT as an alarm in the other side of the L-shaped lounge/diner. Well worth the belt & braces value.

    Published on: 17th January 2015

    Rating: 5 / 5 Stars

    Reviewed by: -

    Very pleased with the product. Excellent service. Extremely helpful staff. Thank you.

    Published on: 6th April 2014

    Rating: 4 / 5 Stars

    Reviewed by: -

    tested it and it is working well

    Published on: 24th January 2014

    Rating: 5 / 5 Stars

    Reviewed by: -

    Connects with other wireless alarms with no problems

    Published on: 5th August 2013

    Rating: 5 / 5 Stars

    Reviewed by: -

    easy to set up easy to set up, easy to install

    Published on: 10th July 2013

    Rating: 5 / 5 Stars

    Reviewed by: -

    Good product, easy to install & setup. Happy customer so far.

    Published on: 10th May 2013

    Rating: 5 / 5 Stars

    Reviewed by: -

    Published on: 6th November 2012

    Rating: 5 / 5 Stars

    Reviewed by: LP

    Published on: 16th August 2012

    Show All

    Delivery Options

    The following delivery options are available on this product.

    Economy Delivery

    £4.68 inc VAT - Delivered in 2-3 working days by Hermes

    Next Working Day Delivery

    £7.80 inc VAT - Delivered the next working day by Hermes

    For dispatch today order within

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    Looking for more information?

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

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