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Mains Powered Optical Smoke Alarm with Lithium Back-up Battery - Ei156 (Ei156TLH)

Discontinued Product

This product has been discontinued.

Product Overview

Optical smoke alarm with hush button and a 10yr+ rechargeable lithium backup cells. If you're looking to replace an existing unit then why not look at the Ei156TL Easichange replacement head kit, suitable for DIY installation without the need for an electrician. Please note that the Ei156 model we sell is identical to Ei156TLH.

  • 230V mains powered smoke detector
  • Available in two versions:
    • Ei156 optical smoke alarm (new installations)
    • Replacement Ei156 optical smoke alarm detector head
  • 5 year warranty
  • More responsive to slow smouldering fires
  • Features the large, advanced Ei optical chamber with proven extended life capability. Fitted with insect resistant screen
  • Easy to use integral Test and Hush 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
  • Hush button for false alarm control
  • Supplied with fixings; 2 x screws and 2 x rawl plugs
Technical Data
Product Code
Replacement Detector Kit (No electrician required) EI156EK
New Installation Detector and Base (For electrician install) EI156TLH
Brand EI Electronics
Back-Up Battery

Longlife Lithium Battery

Dimensions (HxWxD)


Operating Temperature

0°C to +40°C

Relative Humidity

15% to 95% Relative Humidity

Sound Output


Weight 0.20kg
Product Datasheets

Customer Reviews

31 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:

easy to install

Published on: 25th November 2016

Rating: 5 / 5 Stars

Reviewed by:

Easy to fit and excellent quality

Published on: 13th November 2016

Rating: 4 / 5 Stars

Reviewed by:

Good product

Published on: 11th November 2016

Rating: 5 / 5 Stars

Reviewed by:

Easy to install and very effective

Published on: 16th September 2016

Rating: 5 / 5 Stars

Reviewed by:

Replaced existing 10 year old version. Easy fit works perfectly.

Published on: 22nd August 2016

Rating: 5 / 5 Stars

Reviewed by:

Very good service. The lady receptionist was very helpful. When I enquired about my old smoke alarm and wanted to replace it, the receptionist was well informed. I will definitely use and recommend this company again.

Published on: 2nd August 2016

Rating: 5 / 5 Stars

Reviewed by:

Excellent Product & Service! Easy website to navigate, a good selection of products & speedy delivery! Would definitely use again and would recommend.

Published on: 27th June 2016

Rating: 5 / 5 Stars

Reviewed by:

Excellent replacement for the original smoke alarm

Published on: 28th February 2016

Rating: 5 / 5 Stars

Reviewed by:

Found them very easy to fit as replacement to existing.

Published on: 12th January 2016

Rating: 5 / 5 Stars

Reviewed by:

straight replacement for the Ei150 that was positioned outside the kitchen and always went off when cooking

Published on: 12th October 2015

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