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Mains Powered Heat Alarm with Lithium Back-up Battery - Ei154

Discontinued Product

This product has been discontinued.

Product Overview

Mains powered heat alarm from Ei complete with hush button. If your looking to replace an existing heat alarm then why not look at the Ei154TL Easichange replacement detector head kit, suitable for DIY installation of a new head without the need for an electrician.

  • Ideal for protecting kitchens and garages
  • Available in two versions:
  • Fixed temperature fast response thermistor type sensor, range 54° - 62° C
  • Easy to use Test button
  • Separate mains and warning LEDs
  • Low power cell warning in the event of mains or cell failure
  • Interconnects with other Ei Professional mains powered smoke & heat alarms
  • Precision charging circuit ensures peak cell performance
  • Proven 10 year+ rechargeable lithium cell back-up
  • Supplied with fixings; 2 x screws and 2 x rawl plugs
Technical Data
Product Code

Replacement Detector Kit (No electrician required):  EI154EK

New Installation Detector and Base (For electrician install):  EI154TL

Brand EI Electronics
Back-Up Battery

Longlife Lithium Battery

Dimensions (HxWxD)


Operating Temperature

0° to 40°C

Relative Humidity

15% to 95% Relative Humidity

Sound Output


Weight 0.24kg
Product Datasheets
FAQs (1)
Q. How can we test the alarm to make sure it is working?

The manufacturer's recommendation is to test the alarm by pressing the test button. This will simulate a heat input at the heat sensor. You can also test it with a hair dryer but make sure that the hairdryer is kept away at a suitable distance from the alarm. Do not attempt to test the alarm by using open fire or excessive heat as this may damage the unit.

Customer Reviews

4 customers have given this product an overall rating of 4.5 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:

Great quality product delivered quickly

Published on: 18th February 2017

Rating: 5 / 5 Stars

Reviewed by:

Very easy to install replacement for same model after 17 years Had a prolem with the first one that arrived but customer service was excellent and a replacement was shipped which fitted and worked exactly as it should. The replacement item was shipped with all the installation extras which seems a waste - it was identical to the pack advertised as being for new installation.

Published on: 22nd October 2016

Rating: 4 / 5 Stars

Reviewed by:

prompt delivery of correct items

Published on: 20th March 2015

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