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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

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