Is the First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV) worth it?
The First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV) ($129.98) is a top pick with a 8/10 consensus score across 5 expert reviews. Experts highlight 10-year sealed lithium battery — grid-independent local alarm for a decade and smoke + co combo; interconnects with hardwired first alert chain. Best for: Hurricane-zone homeowners, Off-grid alarm reliability, Long-battery prep buyers.

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First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV)
Smart Smoke & CO Alarms
SmartHomeExplorer proprietary rating
5 expert sources
The First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV) earns a SHE Score of 6.4/10, driven by strong value (8.5/10) with room to improve in compatibility breadth (5/10). Based on 5 expert sources and SmartHomeExplorer compatibility analysis.
How we calculate the SHE Score →Expert Consensus: 8/10 across 5 sources
Updated:Key Features
- ✓ 10-year sealed battery
- ✓ Smoke + CO
- ✓ Alexa compatible
- ✓ Local alarm grid-independent
Best For
What Experts Agree On
What Experts Love
- ✓ 10-year sealed lithium battery — grid-independent local alarm for a decade
- ✓ Smoke + CO combo; interconnects with hardwired First Alert chain
- ✓ 85dB local siren always active regardless of WiFi or grid status
Common Criticisms
- ✗ App push notifications require internet path — WiFi-only cloud dependency
- ✗ $111 price point higher than non-smart alternatives for same local alarm
Tap any pick to check its live July 4th price on Amazon.

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What The Experts Say
Ready to buy the First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV)?
Check Price on Amazon$129.98 · 5 expert sources · 8/10 consensus
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See how the First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV) ranks against the full field in our Sensors buying guides.
Frequently Asked Questions
Is the First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV) worth it?
The First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV) earns a 8/10 consensus score across 5 expert sources and is rated "Must Buy". At $129.98, it is best for Hurricane-zone homeowners. it ranks among the top picks in its category.
How much does the First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV) cost?
The First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV) is priced at $129.98. With a 8/10 score from 5 expert reviews and a "Must Buy" rating, that price represents fair value relative to the ~7.5/10 average for Sensors products. Prices shift often, so check the live figure before buying.
Who is the First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV) best for?
The First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV) is best for Hurricane-zone homeowners, Off-grid alarm reliability, Long-battery prep buyers. Experts rate it "Must Buy" with a 8/10 consensus across 5 sources.
How does the First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV) compare to other Sensors options?
Among the Sensors products we have aggregated, the First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV) ranks above average with a 8/10 score. See our full category comparison for head-to-head details.
What smart home systems does the First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV) work with?
The First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV) works with Amazon Alexa. Check the compatibility notes above for any hub dependencies or setup requirements before you buy.
What are the best alternatives to the First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV)?
If the First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV) ($129.98, 8/10) is not the right fit, the closest alternatives in Sensors are nest-protect-2nd-gen. Compare them on price, ecosystem support, and expert consensus to find your match.
What are the pros and cons of the First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV)?
The main strengths of the First Alert SC5 Smart Smoke & CO Alarm (SMCO600NV) are 10-year sealed lithium battery — grid-independent local alarm for a decade and smoke + co combo; interconnects with hardwired first alert chain. The most-cited downside is app push notifications require internet path — wifi-only cloud dependency. Overall, 5 expert sources rate it "Must Buy" with a 8/10 consensus score.
Sources & Methodology
This review aggregates 5 independent expert reviews into a single consensus score. See how we build consensus scores and the SHE Score methodology.
Affiliate disclosure: SmartHomeExplorer.com participates in the Amazon Associates program. We earn a commission from qualifying purchases at no extra cost to you. This consensus review is based on 5 independent expert reviews — we did not test this product ourselves. Always verify current prices and availability before purchasing.

