Sale Icon
Review Icon
Free Delivery Icon

Aico Ei650 Battery-operated Optical Smoke Alarm with Sealed in 10-year Lithium Battery

Model No. EI650 by: Aico
Availability: In Stock


List price £37.89
You save £15.14!
Free Delivery
(over £100+VAT, applies to zones A&B only , £6 +VAT otherwise)
Click & Collect
Order online & collect in store

The Aico Ei650 Optical Alarm is best for detecting slow, smouldering fires commonly produced by electrical fires or sofas and is less likely to react to cooking smells if fitted in the hallway next to the kitchen.

Please note: this item is non-returnable; due to the nature of this item, it has an electronic component and sensor, and we cannot take this item back for a refund as "unwanted".

This battery powered alarm contains sealed in, tamper proof lithium battery that will last for the full 10 year life of the alarm. The alarm is not powered until it is twisted on the mounting base, thus avoiding battery power consumption during storage and prior to installation.

The Ei650i Battery Optical Alarm operates on the light scatter principle to detect smoke particles entering the optical chamber. This optical alarm is sensitive to all domestic fire types but is especially sensitive to visible smoldering fires.

The Aico Ei650i is fitted with a large easy to use Test/Hush button to facilitate frequent testing of the alarm. The Test button can also be used to silence nuisance alarms, e.g. cooking fumes, for a 10-minute period. The sounder will automatically stop sounding when smoke particles are no longer present in the chamber.

The Ei650i is fitted with a large easy to use Test/Hush button to facilitate frequent testing of the alarm. The Test button can also be used to silence nuisance alarms, e.g. cooking fumes, for a 10-minute period. The sounder will automatically stop sounding when smoke particles are no longer present in the chamber.

The Ei650i Battery Optical Alarm performs a self-check its chamber sensor, battery voltage and internal circuitry every 40 seconds. Any fault condition found will be indicated by a combination of red LED flashes and/or audible beeps.

Please note that the 10-year guarantee period is from the year of the manufacture and not from the year of purchase. Therefore, if the alarm is purchased 5 years after the manufacture (for example), the guarantee is only for 5 years.

Aico Ei650 Battery Optical Smoke Alarm - Features

  • Battery powered for life with a sealed 10-year lithium battery 
  • High performance optical chamber, best for slow smoldering fires (e.g. sofas, TV) 
  • Easy to install, no wiring required
  • Large easy to use Test/ Hush button
  • Silence nuisance/ false alarms
  • Built in Piezoelectric horn
  • Alarm fault warnings
  • Aesthetically pleasing, compact design
  • 10 Year life
  • Ideal for fitting in the hallway, in the landing area, in the living room, and in the dining room. 

Aico Ei605 Optical Smoke Alarm - Technical Specifications

  • Supply Type: Optical Chamber
  • Battery: 3V Lithium Battery (non replaceable)
  • Sound Level: 85 dB(A) at 3 metres
  • Temperature: Operating -0 to 40°C
  • Storage: 0 to 35°C (in a dry area)
  • Humidity Range: 15% to 95% R.H.  non condensing
  • Button Test: Simulates the effect of smoke and checks chamber, electronics and horn
  • Self-Test: Smoke chamber, battery and electronics are automatically tested every 40 seconds
  • Indicator LED’s: Red - Alarm, Low battery, Fault
  • Memory: Red LED will flash twice every 16 seconds indicating recent Alarm event
  • Plastic Material: HIP UL 94 HB Flame Retardant
  • Dimensions: Product – 115mm(D) x 50mm(H)
  • Weight: 185g
  • CE Mark
  • Warranty: 5 year (limited) warranty

Note: Some images and pictures are for reference only. The item may differ from the image/picture due to manufacturer's change. Should you require the exact item in the picture, please call or email us to enquire.

Need more detailed specs?

Ask a question

Note: HTML is not translated!

more new 9V battery powered Aico Professional Heat / Smoke Alarms

We have recently added to our catalog online a new range of battery-powered professional Aico fire alarms. These use a 9V Lithium cell/battery and can be upgraded to be used with the other RadioLINK fire alarms in the house. The battery is a 10year Lithium cell which will outlast the useful lifespan of the alarm! All these battery-powered alarms come with early detection to all the standard domestic fire types, and they have a built-in high audibility warning sounder. They are very easy to install (twist-on-base design) and test (large and easy-to-use test/hush button). As to the aspect, they are aesthetically pleasing and has a compact design. Do people prefer the Battery Powered Alarms? Many times people prefer to simply install a battery-powered Aico Professional alarm simply because they don't want to pay the electrician to come and install the alarm. More and more these 9V Fire Alarms / Smoke Alarms are becoming popular in the domestic environment since it offers you the possibility of "sticking the alarm on the ceiling" without wiring it up! Take a look at the different battery-powered alarms from Aico to have an impression of which one do you need for your home:The Aico Ei603 range of 9V alkaline battery-powered heat alarms, is ideal for kitchen;The Aico Ei605 Lithium battery-powered optical smoke alarm, is ideal for kitchen use; The Aico Ei3100 range of 9V battery-powered heat alarm with RadioLINK wireless integration with the other alarms in the house; The Aico Ei3103RF 9V heat alarm with RaioLINK wireless integration, alkaline battery powered heat alarm; The Aico Ei3015RF optical smoke alarm, battery powered, using the RadioLINK wireless interconnection.Please note: some of these alarms are no longer available; see the current interlinked alarms available at Spaks. Battery-Powered Alarms at Sparks


Sparks Direct delivers via courier to the UK only; the standard delivery charge is £6 + VAT for all orders under £100 + VAT. If your order is over £120, you get free delivery (unless there's a special delivery charge for the items you wish to order or you're in shipping zone C or D). Full details for shipping charges can be found via Terms and Conditions.

If the items you order are in stock and the order is placed before 1.00pm, delivery can be made within 1-2 working days. If the items are not in stock, we will inform you via email how long it will take or ask for your confirmation if there's a long lead time.


We offer 30-day returns for unwanted items - please email us to request a returns number which will need to be quoted when the items are returned. For faulty items or items damaged in transit, please advise via email, and an appropriate returns number will be provided. Full details concerning returns and refunds can be found via our Terms and Conditions.