Do you need to replace it at all if so how long? null

All carbon monoxide alarms expire as their sensors have a limited lifespan. To comply with UL (Underwriter’s Labs) certification standards, 2nd generation Nest Protect has to be replaced after 10 years. To help you remember to replace your Nest Protect before it expires, you’ll be sent reminders in the Nest app long before your Nest Protect’s expiration date.

Normally you will replace a carbon monoxide detector every 10 years if you are asking about the unit.

“Do you need to replace it at all if so how long?”

Asked by aidan 5 years ago

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Google - Nest Protect 2nd Generation (Battery) Smart Smoke/Carbon Monoxide Alarm - White-Angle_Standard

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10 year lifespan.
Answered by CSXJoe 5 years ago
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All carbon monoxide alarms expire as their sensors have a limited lifespan. To comply with UL (Underwriter’s Labs) certification standards, 2nd generation Nest Protect has to be replaced after 10 years. To help you remember to replace your Nest Protect before it expires, you’ll be sent reminders in the Nest app long before your Nest Protect’s expiration date.
Answered by Nest Support 5 years ago
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Normally you will replace a carbon monoxide detector every 10 years if you are asking about the unit.
Answered by James 5 years ago
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