Mains Powered Smoke Alarms & Heat Alarms with Alkaline Back-up Battery - Aico Ei140e Series
The Ei140e series of mains powered smoke and heat alarms are supplied with an alkaline back-up battery and "easi-fit" base plate, conforming with BS 5839-6: 2019. A system of 12 alarms can be hardwire interlinked by using 3 core and earth cable. Once interlinked when one alarm is activated, this in turn triggers all other connected alarms and sounds the whole system. The Ei140e series succeeds the discontinued Ei130 series smoke and heat alarms.
- 230V mains powered with alkaline back-up battery
- Suitable for installations complying to BS 5839-6: 2019 Grade D2
- Made in Ireland with a 5 year guarantee
- Available in two versions:
- Ei146e smoke alarm suitable for hallways, landings, living rooms, and bedrooms
- Ei144e heat alarm suitable for kitchens and garages
- Ei140e series alarms can interlink via cable (or wirelessly if purchased with radio-interlink base)
- Preconnected alkaline battery to reduce installation errors (alarm does not draw power until fitted to the mounting plate)
- Capable of interlinking with the Ei1529RC remote control switch
- Combined test and hush facility for easy weekly testing and maintenance
- CE marked, UKCA marked, and Kitemarked
- Smoke Alarm: BS EN 14604: 2005
- Heat Alarm: BS 5446-2: 2003
- This alarm is suitable for both the Welsh and Scottish updated 2022 legislation
- Please note: Alarms sold separately
Customer Reviews (175)
Reviewer
A B
Published on
10th November 2026
Reviewer
J H
I bought this product as my original was out of date. The original was making chirping sounds and continued to do so when I changed the battery. Unfortunately the new one does the same but only very occasionally, I don't really understand why.
Published on
8th November 2026
Reviewer
S C
Great replacement for my previous alarm
Published on
7th November 2026
Technical Data
| Product Code | EI146E |
|---|---|
| Brand | Ei Electronics |
| Manufacturer's Part Number | EI146E |
| Approvals & Markings | CE Marked |
| Back-Up Battery Type | Alkaline |
| Battery Type | 9V Battery |
| British Standard Grade | Grade D2: Mains Powered (replaceable backup) |
| Colour | White |
| Compliance | BS 5839-6 |
| BS EN 14604:2005 | |
| Connection | Wired |
| Display | LED Indicators |
| Fixing Options | Screws (included) |
| Installation Position | Ceiling |
| Local Legislation | Scottish Legislation (2022) |
| Welsh Legislation (2022) | |
| Material | Plastic |
| Maximum Number of Linked Devices | 12 Devices |
| Operating Temperature | -10°C To +40°C |
| Positioning | Bedrooms |
| Hallways | |
| Living Rooms | |
| Power Type | Mains Powered (230V) |
| Product Range | Aico Ei140e Series |
| Recyclable | Yes - Valpak's WEEE Distributor Take-back Scheme |
| Relative Humidity | 15% To 95% |
| Sensor Type | Optical |
| Sound Level | 85dB |
| Suitability | Home |
| Warning Type | Audible - Alarm Sounder |
| Warranty | 5 Years |
| Dimensions (Unit) |
|
| Weight | 350g |
Interlink
| Product Code | Description | Interlink Type |
| Ei140 Series | Mains Powered with Alkaline Back Up Battery | |
| Ei144e | Heat Alarm | Hardwire Interlink |
| Ei146e | Smoke Alarm | Hardwire Interlink |
| Ei144eRF | Heat Alarm | Hardwire / Radio Interlink |
| Ei146eRF | Smoke Alarm | Hardwire / Radio Interlink |
| Ei160 Series | Mains Powered with Lithium Back Up Battery | |
| Ei164 | Heat Alarm | Hardwire Interlink |
| Ei166 | Smoke Alarm | Hardwire Interlink |
| Ei164RF | Heat Alarm | Hardwire / Radio Interlink |
| Ei166RF | Smoke Alarm | Hardwire / Radio Interlink |
| Ei3000 Series | Mains Powered with Sealed Lithium Back Up Battery | |
| Ei3014 | Heat Alarm | Hardwire Interlink |
| Ei3016 | Smoke Alarm | Hardwire Interlink |
| Ei3018 | Carbon Monoxide Alarm | Hardwire Interlink |
| Ei3024 | Smoke & Heat Alarm | Hardwire Interlink |
| Ei3028 | Heat & Carbon Monoxide Alarm | Hardwire Interlink |
| Ei3014RF | Heat Alarm | Hardwire / Radio Interlink |
| Ei3016RF | Smoke Alarm | Hardwire / Radio Interlink |
| Ei3018RF | Carbon Monoxide Alarm | Hardwire / Radio Interlink |
| Ei3024RF | Smoke & Heat Alarm | Hardwire / Radio Interlink |
| Ei3028RF | Heat & Carbon Monoxide Alarm | Hardwire / Radio Interlink |
| Ei600 Series | 10 Year Sealed Lithium Battery | |
| Ei650RF | Smoke Alarm | Radio Interlink |
| Ei630iRF | Heat Alarm | Radio Interlink |
Ei1516 Masking Plate For New Smoke & Heat Alarm Installations
£4.67 inc VAT
£3.89 ex VAT
Surface Mount 230V Hardwire Relay with 5 Amp Output - Ei128R
£45.35 inc VAT
£37.79 ex VAT
Manual Call Point - MCP401RC
£38.69 inc VAT
£32.24 ex VAT
Surface Mount Kit for 140, 160 & 3000 series - Ei127
£6.59 inc VAT
£5.49 ex VAT
9V Duracell Procell Alkaline Battery
£4.15 inc VAT
£3.46 ex VAT
Surface Mount 230V Relay Module with Lithium Back-Up Battery - Ei128RBU
£70.07 inc VAT
£58.39 ex VAT
230V Remote Locate, Silence and Test Control Switch - Ei1529RC
£45.23 inc VAT
£37.69 ex VAT
230V Mains Powered Flashing Xenon Strobe - SAB300C
£42.05 inc VAT
£35.04 ex VAT
Easichange Smoke Alarm Removal & Replacement Tool
£4.25 inc VAT
£3.54 ex VAT
Great product and a straight swap onto the base of an existing fitted house smoke alarm (same make). Would be better if could buy the alarm without the baseplate, as the base will be going straight to the local recycling centre.