First Alert SC5 Smart Smoke & CO vs First Alert SMCO100 / SMCO200V Combo
Side-by-side specs from each maker.
Only the differences are shown.
| First Alert SC5 Smart Smoke & CO | First Alert SMCO100 / SMCO200V Combo | |
|---|---|---|
| Type | Smoke or CO alarm | Smoke or CO alarm |
| Alarm | combo | combo |
| Sensor | Photoelectric (smoke) and electrochemica | Photoelectric (smoke) and electrochemica |
| Power | Battery-operated, CR123A lithium (replaceable) for the batte | AA (2 alkaline, replaceable) |
| Interconnect | wireless | Not listed |
| Standards (maker) | Conforms to UL 217 10th Edition Standard | Not listed |
| Replace after | Not listed | 10 years |
First Alert SC5 Smart Smoke & CO
A smart smoke and CO alarm with voice alerts, wireless interconnect, and phone alerts through the Resideo Connect app. The maker says it is compatible with and replaces Google Nest Protect.
- Voice alerts naming the type and location
- Phone alerts through the Resideo Connect app
- Battery and hardwire versions are separate products
First Alert SMCO100 / SMCO200V Combo
A battery-powered smoke and CO combo alarm that runs on two replaceable AA batteries. The maker says the unit itself should be replaced at least every 10 years.
- Replaceable AA batteries
- The maker lists a replacement interval of at least every 10 years