First Alert 10-Year Battery Photoelectric Smoke Alarm, Slim Profile vs First Alert SMCO100 / SMCO200V Combo
Side-by-side specs from each maker.
First Alert 10-Year Battery Photoelectric Smoke Alarm, Slim ProfileList price not published
Only the differences are shown.
| First Alert 10-Year Battery Photoelectric Smoke Alarm, Slim Profile | First Alert SMCO100 / SMCO200V Combo | |
|---|---|---|
| Type | Smoke or CO alarm | Smoke or CO alarm |
| Alarm | smoke | combo |
| Sensor | photoelectric | Photoelectric (smoke) and electrochemica |
| Power | 10-year sealed lithium battery | AA (2 alkaline, replaceable) |
| Replace after | Not listed | 10 years |
First Alert 10-Year Battery Photoelectric Smoke Alarm, Slim Profile
A slim photoelectric smoke alarm with a built-in 10-year lithium battery that mounts on a wall or ceiling with a twist-lock bracket.
- Photoelectric sensor
- No battery changes
- Half as thick as a standard alarm
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