SA511CN2-3ST Interconnected Wireless Smoke Alarm with Voice & Location
SKU: SA511CN2-3ST
The First Alert SA511 Interconnected Wireless Smoke Alarm with Voice & Location Alerts is battery operated and features an 85-decibel alarm with voice alerts that tell you where the danger is located. A photoelectric sensor detects smoke while minimizing false alarms from cooking or shower steam. Interconnected smoke detectors in different locations are designed to work together, with one alarm triggering the others during a fire, helping to provide the earliest warning of fire for your family.
- Interconnected wireless detectors all sound when one is activated
- Photoelectric smoke sensor reduces false alarms
- Voice alarm tells you where the danger is, so you can choose the best evacuation route
- Battery-operated detector easily installs

Product Overview
Interconnected Wireless Smoke Alarms
The First Alert, Battery Operated Interconnected Wireless Smoke Alarm communicates wirelessly with other compatible alarms (sold separately). When one detector sounds, the other connected alarms sound as well, helping to alert you to a fire in the basement even if you are in the attic.
Voice & Location Alerts
The First Alert Interconnected Wireless Smoke Detector features a voice alarm with 11 pre-programmed choices that tell you where the danger is located in your home and warns you to evacuate. It also uses a loud 85-decibel alarm.
Battery-Operated Fire Detector Easily Installs
Requiring no wires to install, this Interconnected Wireless Smoke Alarm with Voice & Location Alerts is powered by two AA batteries. The device will continue to monitor your home for fire even in the event of a power outage. The detector has a low battery indicator light and will chirp when it’s time to replace the batteries.
Model | SA511 |
---|---|
Replacement Model | SM500V |
Type | Smoke Alarm |
Sensor Type | Photoelectric |
Sensor Information | Smoke particles of varying number and size are produced in all fires. For maximum protection, use both ionization and photoelectric sensing technologies. Ionization alarms are generally more sensitive to fast flaming fires and photoelectric alarms are generally more sensitive to smoldering fires. |
Power Source | Battery Operated |
Battery Size | AA |
Number of Batteries | 2 |
Battery Replaceable | Yes |
Wireless Interconnectivity | Yes |
Alert Type | Voice |
Sound Level | 85dB at 10 feet |
Product Height | 2 in |
Product Length | 5 in |
Product Width | 5 in |
Product Weight | 1.8 lb |
Features | Voice Alerts, Hardwire Interconnectivity, Wireless Interconnectivity |
UPC Number | 029054002860 |
Warranty | 10 Years Limited |