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10 Year Sealed Battery Interconnectable Optical Smoke Alarm - Ei3105TYC

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The Ei3105TYC can be interconnected with up to 11 other units and has a sealed 10 year battery, meaning that there is no need to replace the battery for the complete lifespan of the unit.
  • 10 year sealed lithium cell operated smoke alarm 
  • 5 year warranty on alarm
  • Senses smoke using the light scatter principle
  • A maximum of 12 units can be interconnected via bell wire
  • Can be interconnected with bell wire to any other Ei interconnectable smoke alarm to ensure that the alarm is heard in all the house!
  • Alarms that can be interconnected include:
  • Fully conforming to BS5839-pt6 Grade F
  • Kitemarked to BS EN 14604:2005
  • CE marked
  • Hush button
  • 10 year end of life warning
  • Also suitable for Housing Associations
The table below shows all the units that can interconnect with the EI3105TYCH

Model Number
Type of unit
Type of interconnection
Ei100CNP Ionisation Alarm Hard wire interconnect
Ei103C Heat Alarm Hard wire interconnect
Ei105C Optical Alarm Hard wire interconnect
Ei100TYC Ionisation Smoke Alarm with 10yr Battery Hard wire interconnect
Ei3105TYC Optical Smoke Alarm with 10yr Battery Hard wire interconnect

This is the technical data for the 10 Year Sealed Battery Interconnectable Optical Smoke Alarm - Ei3105TYC.

Product Code EI3105TYCH
Weight 0.281 kg
Dimensions (HxWxD) 140x120x45mm
Battery Type Longlife Lithium Battery
Sound Output 85dB (minimum) at 3m
Temperature Range 0 to 40°C
Humidity Range 0% to 90% Relative Humidity

Technical Data Sheets

The following technical data sheets are available for this product:

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Q.Hi, (all questions with reference to products with lithium ion batteries to last 10 years and that can be wired e.g. Ei3105TYC)

1. i was wondering if you have 12 units wired together, if one were to malfunction would it affect the ability of the others to give alarm together?

2. Also, can the battery be replaced after 10 years if we want to?

3. When the test button is pressed on one of the units will this cause all the others to sound as well?

4. When there is an genuine nuisance alarm and all 12 units go off, can they be silenced from any of the 12?

A.1. If one of the alarms was to malfunction, the connection between all the alarms would still be active.
If the malfunction was not the alarm, but the interlink, then only the alarms upto this point would sound.

2. This unit is a sealed unit therefore the batteries cannot be replaced.

3. Yes, pressing the test button will cause all the additional alarms to sound as well.

4. The alarm that triggers all the alarms to sound will flash red on the LED, the trigger alarm will need the hush button pressing to silence the nuisance alarm.

5 stars5 stars5 stars5 stars5 stars
16/May/2010 10:05am
Reviewed by: L J

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