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Radio-Interlinked Battery Powered Optical Smoke Alarm - Ei3105RF

Discontinued Product

This product has been discontinued.

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: 2019 Grade F2
    • 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
    Product Code EI3105RF
    Alternative Product Codes Ei3105, Ei3105RF, ei3105f
    Brand EI Electronics
    Battery Type

    9V Alkaline

    Dimensions (HxWxD)

    140x120x45mm

    Operating Temperature

    0°C to 40°C

    Relative Humidity

    15% to 95%

    Sound Output

    85dB

    Warranty

    5 Years

    Weight 0.22kg
    Product Datasheets
    FAQs (9)
    Q. Do the three types of Ei3103 alarms interconnect with each other?
    A.

    Yes, the Ei3103 range, Ei3100RF - Ionisation Smoke Alarm Ei3105RF - Optical Smoke Alarm Ei3103RFU - Heat Alarm, interconnect with each other. If one sounds it will send a radio-signal to the other units and they will then be activated.

    Q. Is the Ei3105RF a complete smoke alarm or does it need a base?
    A.

    The Ei3100RF series of battery operated smoke alarms are complete alarms, they do not require base plates to make them radio interlinked.

    Q. Does the Ei3100 battery operated radio linked series have a hush button? If not how are false alarms dealt with?
    A.

    There are three different alarms that make up the Ei3100 series. The Ei3100 optical alarm does have a hush button, which can be pressed to reset the alarm should a false alarm occur. The ionisation and heat alarms do not have hush buttons. Should either of these alarms trigger a false alarm, due to cooking fumes for example, the alarm can be silenced using a folded newspaper to fan underneath it. To identify which alarm has triggered the false alarm it is the unit with a rapidly flashing red LED.

    Q. If an EI3105RF alarm is installed in a thatch roof space and one is installed on the landing of the house, will the second unit sound should there be a fire detected in the roof space?
    A.

    Yes that is correct, the radio frequency technology in these alarms allows them to be connected wirelessly. This is acheived by following the step by step house coding procedure in the instructions, the procedure ensures that all alarms in the series are 'tuned in' to each other allowing them to pass messages on. If a fire was to occur in your roof space the alarm located up there would sound and send a message to the alarm downstairs which would then sound to alert anybody in the premises.

    Q. Where more than one radio-interlinked battery operated smoke alarm is installed, if the battery in one alarm failed would the other alarms be affected?
    A.

    If one alarm was to malfunction the other units would not be affected, if it was due to alarm failure. If the fault was with the radio-interlinking signal, then all alarms that are in the chain after the faulty alarm would be affected and they would not go off.

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    Customer Reviews

    22 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:

    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:

    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:

    Product works as intended, easy to install, fast delivery

    Published on: 27th April 2018

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