List of Discontinued Alarms & Replacements
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Replacement Models for Discontinued Smoke Alarms

When smoke and heat alarms are discontinued it can be hard to track down a suitable replacement when your alarm reaches the end of its life. We have put together a helpful list of replacement models for discontinued smoke alarms. If you cannot see your alarm on the list please contact us with your model number and we will be happy to help.

Replacing a Kidde KF1 and Kidde KF1R Ionisation Smoke Alarm

Discontinued: October 2015
Associated Codes Kidde KF1, Kidde KF1R, Kidde KF Series, Firex KF1

These models can be replaced by the KF10 and KF10R. The new units will work with the existing cable network so all you need to do is replace your baseplate. We recommend asking an electrician to change the alarm as the cables will need to be wired into the new unit.

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Replacing a Kidde KF2 and Kidde KF2R Optical Smoke Alarm

Discontinued: October 2015
Associated Codes Kidde KF2, Kidde KF2R, Kidde KF Series, Firex KF2

These models can be replaced by the KF20/R. The new units will work with the existing cable network so all you need to do is replace your baseplate. We recommend asking an electrician to change the alarm as the cables will need to be wired into the new unit.

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Replacing a Kidde KF3 and Kidde KF3R Heat Alarm

Discontinued: October 2015
Associated Codes Kidde KF3, Kidde KF3R, Kidde KF Series, Firex K32

These models can be replaced by the KF30/R. The new units will work with the existing cable network so all you need to do is replace your baseplate. We recommend asking an electrician to change the alarm as the cables will need to be wired into the new unit.

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Replacing a Kidde 123i and Kidde 1239HI Ionisation Smoke Alarm

Discontinued: November 2010
Associated Codes Kidde 123i, Kidde 1239HI, Kidde 1239HILL

These models can be replaced by the KF10 and KF10R. The new units will work with existing interlinked alarms however the base plate and cable harness need to be replaced, we recommend asking an electrician to carry out this work.

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Replacing a Kidde 223i and Kidde 2239HI Optical Smoke Alarm

Discontinued: November 2010
Associated Codes Kidde 223i, Kidde 2239HI, Kidde 2239HILL

These models can be replaced by the KF20/R. The new units will work with existing interlinked alarms however the base plate and cable harness need to be replaced, we recommend asking an electrician to carry out this work.

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Replacing a Kidde 323i and Kidde 3239HI Heat Alarm

Discontinued: November 2010
Associated Codes Kidde 323i, Kidde 3239HI, Kidde 3239HILL

These models can be replaced by the KF30/R. The new units will work with existing interlinked alarms however the base plate and cable harness need to be replaced, we recommend asking an electrician to carry out this work.

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Replacing a Ei151 and Ei151TL Ionisation Smoke Alarm

Discontinued: September 2016
Associated Codes Ei151, Ei151TL, Ei151TLH, Ei151TLR, Ei150, Ei150 Series

These models can be replaced by the Ei141 and Ei161. The new units will work with the existing cable network so all you need to do is replace your baseplate. We recommend asking an electrician to change the alarm as the cables will need to be wired into the new unit.

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Replacing a Ei156 and Ei156TL Optical Smoke Alarm

Discontinued: September 2016
Associated Codes Ei156, Ei156TL, Ei156TLH, Ei156TLR, Ei150 Series

These models can be replaced by the Ei146 and Ei166. The new units will work with the existing cable network so all you need to do is replace your baseplate. We recommend asking an electrician to change the alarm as the cables will need to be wired into the new unit.

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Replacing a Ei131 Ionisation Smoke Alarm

Discontinued: Not Available
Associated Codes Ei131, Ei130 Series, Ei Mains Powered Ionisation

This model can be replaced by the Ei141 and Ei161. The new units will work with the existing cable network so all you need to do is replace your baseplate. We recommend asking an electrician to change the alarm as the cables will need to be wired into the new unit.

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Replacing a Ei136 Optical Smoke Alarm

Discontinued: Not Available
Associated Codes Ei136, Ei Mains Powered Optical, Ei130 Series

This model can be replaced by the Ei146 and Ei166. The new units will work with the existing cable network so all you need to do is replace your baseplate. We recommend asking an electrician to change the alarm as the cables will need to be wired into the new unit.

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Replacing a Ei134 Heat Alarm

Discontinued: Not Available
Associated Codes Ei134, Ei Mains Powered Heat, Ei130 Series

This model can be replaced by the Ei144 and Ei164. The new units will work with the existing cable network so all you need to do is replace your baseplate. We recommend asking an electrician to change the alarm as the cables will need to be wired into the new unit.

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Replacing a Kidde 4870 and Kidde 4881 Ionisation Smoke Alarm

Discontinued: October 2012
Associated Codes Kidde 4870, Kidde 4881, 1240C, 120-1123B (or C), GC240

These models can be replaced by the KF10 and KF10R. The new units will work with the existing cable network so all you need to do is replace your baseplate. We recommend asking an electrician to change the alarm as the cables will need to be wired into the new unit.

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Replacing a Kidde 4973 and Kidde 4985 Optical Smoke Alarm

Discontinued: October 2015
Associated Codes Kidde 4973, Kidde 4985

These models can be replaced by the KF10 and KF10R. The new units will work with the existing cable network so all you need to do is replace your baseplate. We recommend asking an electrician to change the alarm as the cables will need to be wired into the new unit.

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Replacing a Kidde 4899 and Kidde 4982 Heat Alarm

Discontinued: October 2015
Associated Codes Kidde 4899, Kidde 4982

These models can be replaced by the KF30/R. The new units will work with the existing cable network so all you need to do is replace your baseplate. We recommend asking an electrician to change the alarm as the cables will need to be wired into the new unit.

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Replacing a Kidde 1275H Ionisation Smoke Alarm

Discontinued: October 2015
Associated Codes Kidde 1275H

This model can be replaced by the KF10 and KF10R. The new units will work with the existing cable network so all you need to do is replace your baseplate. We recommend asking an electrician to change the alarm as the cables will need to be wired into the new unit.

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Replacing a Ei605TYCRF - Optical Smoke Alarm with Radio-interlink

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Replacing a Ei600RF Series - 10 Year Sealed Lithium battery Smoke & Heat Alarms

Battery powered (10 year sealed lithium battery) alarms, available with ionisation, optical and heat sensors.

The alarms are suitable for BS 5839-6: 2013 grade F installations but usually accepted as alternative to Grade D.

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Replacing a Heat Alarm with Lithium Battery - EI603TYCRF

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