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Mains Powered Replacement Smoke Alarm for Ei150 / Ei151 / Ei151TL / Ei151TLH

Discontinued Product

This product has been discontinued.

Product Overview

These alarms are available in two versions.

Replacement detector kit (no electrician required) - An Ei150 / 151 / 151TL ionisation smoke alarm can be easily replaced at the end of its life using anEasichange Ei151EK replacement detector kit. The kit (genuine EI components) allows domestic users to replace their alarm without the assistance of an electrician. Safelincs offers this replacement kit for domestic users as well as the standard unit and base that requires an electrician for installation.

New installation detector and base (for electrician install) - The Ei151TL, also known as the  Ei150, Ei151 and Ei151TLH has to be fitted by an electrician and allows existing systems to be extended

Technical Features:

  • Responds quickly to fast flaming fires
  • Easy to use Test and Hush buttons
  • Separate mains and warning LEDs
  • Low power cell warning in the event of mains or cell failure
  • Precision charging circuit ensures peak cell performance
  • Interconnects with other Ei Professional mains powered smoke & heat alarms
Technical Data
Product Code
Replacement Detector Kit (No electrician required) EI151EK
New Installation Detector and Base (For electrician install) EI151TL
Brand EI Electronics
Back-Up Battery

Longlife Lithium

Dimensions (HxWxD)


Operating Temperature

0°C to +40°C

Relative Humidity

15% to 95% Relative Humidity

Sound Output


Weight 0.21kg
Product Datasheets
FAQs (2)
Q. My 13 year old Ei151tl smoke alarm is bleeping, even when I remove it from its base. I think it has a sealed battery.

The alarm should chirp for about 5 to 10 minutes and then stop. After that the detector will be dead.

Q. I need to take a chirping Ei150 series smoke alarm off the base to stop the noise. Can I switch the power back on after that or do I have to wait til I received the replacement smoke alarm?

You can switch the power back on straight away after removing the alarm. This does not damage the system.

Customer Reviews

135 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: 4 / 5 Stars

Reviewed by:

easy to install

Published on: 4th November 2016

Rating: 5 / 5 Stars

Reviewed by:

Easy to replace, fast delivery Really pleased with the service, the alarms arrived quickly, and all it needed was replace like-for-like.

Published on: 2nd November 2016

Rating: 5 / 5 Stars

Reviewed by:

Very easy to install. Fast delivery

Published on: 1st November 2016

Rating: 5 / 5 Stars

Reviewed by:

easy to install excellent delivery service

Published on: 31st October 2016

Rating: 5 / 5 Stars

Reviewed by:

Working Fine my original system Thank You

Published on: 30th October 2016

Rating: 5 / 5 Stars

Reviewed by:

Does the job Brought this as a replacement for a failed 10 year old one. Easy to fit when using the supplied tool

Published on: 29th October 2016

Rating: 5 / 5 Stars

Reviewed by:

Easy to install new replacement, clear instructions included.

Published on: 19th September 2016

Rating: 4 / 5 Stars

Reviewed by:

Very easy to install.

Published on: 27th August 2016

Rating: 5 / 5 Stars

Reviewed by:

Very replacement for old ones. Good, prompt service.

Published on: 26th August 2016

Rating: 4 / 5 Stars

Reviewed by:

Seems well made with a good loud alarm Don't know how well it works as it has fortunately not been tested in an emergency situation

Published on: 24th August 2016

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