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Aico Mains Powered Smoke Alarms with Lithium Back-up Battery Ei160RC Series

Discontinued Product

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

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Product Overview

The Ei160RC series of mains powered smoke alarms are fitted with a sealed rechargeable lithium long life battery. Designed to last the life of the alarm, the back up battery will not need replacing and continues to power the unit in case of a mains failure. The Ei160RC smoke alarms can be interconnected using cable, allowing all the alarms to sound if a single unit detects a fire. This interconnection feature provides occupants with the earliest warning in case of an emergency.

  • Ionisation and optical smoke alarms Kitemarked to BS EN 14604:2005
  • Suitable for installations complying to BS 5839-6: 2013 Grade D, E and F
  • 10 year rechargeable lithium back-up battery - Complete peace of mind for the full life of the alarms
  • Available in two versions:
    • Ionisation smoke alarm (Ei161RC) for fast-flaming fires - used on landings, offices
    • Optical smoke alarm (photo-electric smoke alarm) (Ei166RC), responds faster to smouldering fires - used in bedrooms, living rooms, hallways
  • 230V mains powered
  • Features test/hush button facility
  • Ei160 series alarms can be interconnected cable (or wireless if purchased with radio-interlink base)
  • 5 year guarantee

The table below shows all the units that can interconnect with the Ei160 series of alarms.

Alarms from the same series
Model Number
Type of unit
Type of interconnection
Ei161RC Ionisation Alarm Hard wire Interconnect
Ei166RC Optical Alarm Hard wire Interconnect
Ei164e Heat Alarm Hard wire Interconnect


Multi Sensor Smoke & Heat Alarm Hard wire Interconnect
Ancillary Products
Model Number
Type of unit
Type of interconnection
Y03 Multi Frequency Sounder Hard wire Interconnect
Ei1529RC Smoke alarm Locate, Hush and Remote test switch Hard wire Interconnect
SAB300C Mains Powered Flashing Strobe - Clear Hard wire interconnect
SAB300R Mains Powered Flashing Strobe - Red Hard wire interconnect

Wiring Explained

The Ei160 series of smoke and heat alarms require a 230V AC mains power supply. Up to 12 alarms can be hard wire interconnected on one circuit.

To obtain a mains feed, the first alarm can be connected to the nearest lighting circuit using 2 core and earth cable. From this alarm, 3 core and earth cable is required for all additional alarms, which allows for the hard wire interconnection to work. Please see the diagram below:-


Alternatively, the alarms can be hard wired using a dedicated circuit from the distribution board.

Technical Data
Product Code EI161166164M
Brand EI Electronics
Back-Up Battery

Longlife Lithium Battery

Dimensions (HxDia)

Ionisation: 40x145mm

Optical: 50x152mm

Operating Temperature

0 to 40°C

Relative Humidity

15% to 95% Relative Humidity

Sound Output


Weight 1.00kg
Product Datasheets
FAQs (11)
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.

Q. I want to interlink 4 x Ei166 smoke alarms with the Ei1529RC. Do I need a spacial base (Ei128R) or is it possible to do this with the standard base the alarms come with? Also, what would we need to add the SAB300C beacon to the system?

The Ei160 series of detectors can hard wire interconnect with the Ei1529RC switch without the need for the Ei128R relay base. You would however require the Ei128R relay base to connect the detectors to the SAB300C beacon.

Q. My detector does not have "RC" stated at the end of the code. What does this stand for?

The RC just refers to "Remote Control" as the unit can be fitted to a radio-frequency base for interconnection. The model hasn't changed but the manufacturers changed the product code slightly in reference to this.

Q. Does this alarm conform to BS 5446 part 1 as recommended by the Fire Service?

This recommendation has been superseded by BS 14604:2005. All of our smoke and heat alarms conform to this standard in accordance with the Kitemark.

Q. Can I upgrade an existing Ei140 series base with a Ei160 series smoke alarm?

Yes, the bases for the Ei140 and Ei160 series are identical units and are interchangeable.

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Customer Reviews

43 customers have given this product an overall rating of 4.8 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: K J

Easy to fit. Base covered old alarm when it was removed.

Published on: 22nd June 2016

Rating: 5 / 5 Stars

Reviewed by: J G

Ordering was very easy as was fitting the alarm (we did already have the base plate wired in position).

Published on: 7th June 2016

Rating: 5 / 5 Stars

Reviewed by: J G

Ordering was easy as was fitting the alarm.

Published on: 7th June 2016

Rating: 5 / 5 Stars

Reviewed by: J G

quite simply, it could be life saving! Very sensitive, therefore they do what they are supposed to do.

Published on: 2nd May 2016

Rating: 5 / 5 Stars

Reviewed by: J G

This one is upstairs and, because the one downstairs is so sensitive, the upstairs alarm has never sounded..

Published on: 2nd May 2016

Rating: 5 / 5 Stars

Reviewed by:

easy installation

Published on: 27th January 2016

Rating: 5 / 5 Stars

Reviewed by:

peace of mind at a fair price

Published on: 27th January 2016

Rating: 5 / 5 Stars

Reviewed by:

Solved a problem

Published on: 30th August 2015

Rating: 5 / 5 Stars

Reviewed by:

Super easy to install and wire up to a whole home system. Very impressed.

Published on: 6th June 2015

Rating: 5 / 5 Stars

Reviewed by:

Arrived very speedily. Exactly what was ordered and fitted easily on existing bases.

Published on: 27th April 2015

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