













🚨 Stay ahead of danger with Kidde’s 10-year peace of mind!
The Kidde Hardwired Smoke Detector 4-pack combines cutting-edge photoelectric sensing with a 10-year lithium battery backup and interconnectivity, delivering reliable, whole-home fire safety. Designed to reduce false alarms and provide clear LED status indicators, this UL 217 9th Edition certified alarm ensures your family is alerted instantly with a loud 85-decibel siren. Easy to install and maintain, it’s the smart choice for modern, safety-conscious homes.


| Brand | Kidde |
| Style | Modern |
| Power Source | Hardwired |
| Color | White |
| Product Dimensions | 1.88"D x 5"W x 5"H |
| Item Weight | 0.8 Pounds |
| Alarm | Smoke Alarm |
| Operating Humidity | up to 95% relative humidity (RH), non-condensing |
| Upper Temperature Rating | 100 Degrees Fahrenheit |
| Sensor Type | Photoelectric |
| Material | Plastic |
| Number of Items | 1 |
| Manufacturer | Kidde |
| UPC | 047871328659 |
| Part Number | 21032865 |
| Item Weight | 12.8 ounces |
| Item model number | 20SA10 |
| Batteries | 1 CR2 batteries required. (included) |
| Size | 4 Pack |
| Shape | Circular |
| Item Package Quantity | 1 |
| Included Components | Four Alarms, Mounting Hardware, User Guide |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Metal |
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