






🔥 Stay safe in style—slim, smart, and set for 10 years! 🔋
The First Alert SM210 smoke alarm features a 10-year sealed lithium battery, advanced Precision Detection photoelectric sensor technology to minimize false alarms, and a sleek slim profile design that’s half the depth of standard alarms. It includes an end-of-life warning and a convenient test/silence button, making it a reliable, low-maintenance safety upgrade for any modern home.







| Brand | First Alert |
| Style | Precision Detection |
| Power Source | Battery Powered |
| Color | White |
| Product Dimensions | 5.13"D x 5.13"W x 1"H |
| Item Weight | 0.37 Pounds |
| Alarm | Smoke Alarm |
| Operating Humidity | 10-95% RH |
| Sensor Type | Photoelectric |
| Number of Items | 1 |
| Manufacturer | Resideo |
| UPC | 029054021847 |
| Part Number | SM210 |
| Item Weight | 5.9 ounces |
| Item model number | SM210 |
| Batteries | 1 Product Specific batteries required. (included) |
| Size | 1-Pack |
| Pattern | SM210 |
| Item Package Quantity | 1 |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium |
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