120V, Hardwired Photoelectric & Ionization Smoke Alarm, With Battery Back Up, Double Protection For Both Flaming & Smoldering Fires, Dual Photoelectric & Ionization Smoke Sensing Technologies, Includes 2 Latching Features, 1 Alarm Latch Easily Identifies
| Brand | FIRST ALERT |
| Style | Hardwired |
| Power Source | Battery Powered |
| Item Weight | 0.73 Pounds |
| Alarm | Visual |
| Sensor Type | Photoelectric |
| Material | Plastic |
| Manufacturer | First Alert |
| Part Number | 3120B |
| Item Weight | 11.7 ounces |
| Product Dimensions | 5 x 5 x 2 inches |
| Item model number | 3120B |
| Batteries | 2 AA batteries required. (included) |
| Is Discontinued By Manufacturer | No |
| Size | Pack of 1 |
| Voltage | 120 Volts |
| Item Package Quantity | 1 |
| Sound Level | 85 dB |
| Included Components | First Alert BRK 3120B Hardwired Smoke Detector with Photoelectric and Ionization with Battery Backup |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Average Battery Life | 4320 Hours |
| Warranty Description | 10 Year Limited Warranty |
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