First Alert SMCO600NV Smart Smoke & Carbon Monoxide Alarm: Compatible with Google's Nest Protect Alarm
Smoke alarms have long been the unsung heroes of home safety—until now. The First Alert SC5 Battery Smart Smoke and Carbon Monoxide Alarm doesn't just sit on your ceiling waiting for disaster. It's a tech-savvy guardian that texts you when trouble brews, thanks to its First Alert app integration. Whether you're binge-watching shows downstairs or halfway across the globe, this gadget keeps you in the loop. And for those already nesting in Google's smart home ecosystem? It plays nice with Nest Protect, adding another layer of defense.
But here's where it gets clever: Precision Detection Technology cuts through the usual false alarms (goodbye, burnt toast panic) while sniffing out real threats with unnerving accuracy. And instead of just beeping like a deranged robot, it talks—clearly stating what's wrong and where. Imagine hearing "smoke detected in the kitchen" instead of a generic siren. That's the Heads-Up warning at work. Plus, it turns your home into a chorus of safety; when one alarm senses danger, the rest join in, ensuring no corner is left unheard. It's not just an alarm—it's a networked safety net.
Features
- Sends alerts to your phone if smoke and CO are detected
- Interconnect so all compatible alarms sound together
- Notifies when batteries are low
- Voice alerts with Heads-Up warning
- Precision Detection Technology reduces nuisance alarms
- Compatible with Google's Nest Protect Alarm
General specs
- Brand: First Alert
- Model: SMCO600NV
- Seller: Amazon
- ID: B0DS2W3794
- style: Battery
- Power Source: Battery Powered
- Product Dimensions: 5.75"D x 1.6"W x 5.75"H
- Item Weight: 1 pounds
- Alarm: Audible
- Number of Items: 1
- batteries: 6 C batteries required. (included)
- Included Components: 3V CR123A Lithium Batteries
- Batteries Included: Yes
- Batteries Required: Yes
- Battery Cell Type: Lithium Ion
- First listed by seller: 8/5/25
If you are interested in more details, you can find full information on the seller's page.
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Price History for seller Amazon
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| Brand | First Alert | Soewolit | KLTsenaife | KLTsenaife | X-Sense | WUZETIAN |
| Model | SMCO600NV | KT0917 | YHW-543COM-R | YHW-543COM-R | XP0A-iR | KT0918 |
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| Price | $111.96 | $109.69 | $64.88 | $52.99 | $115.99 | $76.41 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | Feb 7, 2026 | Feb 7, 2026 | Feb 7, 2026 | Jan 21, 2026 | Dec 9, 2025 | Feb 7, 2026 |
| Power Source | Battery Powered | Battery | Battery | Battery | ||
| Batteries Included | Yes | Yes | Yes | Yes | ||
| Weight | <num1>, <num2> | 181.44 | 181.44 | 2.09 pounds | ||
| Dimensions | 107, 102, 102 | <num_width>, <num_height>, <num_z> | 107, 34, 107 | |||
| Connectivity | Wi-Fi | Wi-Fi | Wi-Fi (2.4 GHz only) | |||
| Alarm Sound Level | 85 | 85 | 85 | |||
| Alarm Type | Audible, Smart | Audible, Smart, Visual | Audible, Visual | |||
| Battery Type | AA | AA | AA | |||
| Display Type | Digital | LCD | LCD | |||
| Detection Type | Smoke, Carbon Monoxide | Carbon Monoxide, Smoke | Smoke, Carbon Monoxide | |||
| Sensor Type | Electrochemical | Photoelectric smoke sensor, Electrochemical CO sensor | Electrochemical | |||
