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230V Mains Optical Smoke Alarm with 10 year Rechargeable Lithium Cells - Ei166R

Discontinued Product

This product has been discontinued.

alternative product

Replacement for Ei166, Ei166RC & Ei166e Smoke Alarms

  • Power: 230V mains with back-up battery
  • Back-up Battery: Self-charging lifetime battery
  • Warranty: 5 year warranty
  • Fits onto your existing Ei166 smoke alarm base
  • Fully compatible replacement for Ei166 smoke alarms
  • Improved optical sensor technology for fewer false alarms
  • Kitemarked to BS EN 14604: 2005

£51.23 inc VAT

£42.69 ex VAT

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Product Overview

Optical smoke alarm with hush button, 10yr+ rechargable lithium backup cells, mounting plate and surface mount kit for use with the modifire system (Ei152 & MCP400):

  • 230V mains powered smoke detector
  • 5 year warranty
  • More responsive to slow smouldering fires
  • Advanced suppression and calibration technology
  • Large volume high performance optical chamber with proven extended life capability. Fitted with insect resistant screen
  • Hush button for false alarm control
  • Separate mains and warning LEDs for easier identification of alarm status
  • Auto self-test feature continually monitors the sensor every 40 seconds for additional safety
  • 10 year+ Rechargeable Lithium Cell back-up designed to outlast the alarm - life expectancy of cells endorsed by Panasonic
  • Precision charging circuit ensures peak cell performance
  • Low power cell warning in the event of a mains or cell failure
  • Interconnects with other Ei Professional mains powered smoke & heat alarms
  • Easi-fit mounting plate - simpler and quicker to install
Technical Data
Product Code EI166R
Brand EI Electronics
Back-Up Battery

Longlife Lithium Battery

Dimensions (HxDia)


Weight 1.00kg
Product Datasheets
FAQs (1)
Q. How do you wire in the Ei140/Ei160 series of smoke alarms?

To wire the units correctly you would use 2 core and earth cable to the first unit and 3 core and earth to the interconnected units. The alarms do not have to be earthed but a brass screw connector is provided so that the earth can be safety terminated.

Looking for more information?

If you have any questions or would like more information about this product you can ask one of our specialists.

Direct Telephone 01507 464181


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