After installing new batteries, be sure to test your smoke detector. If the battery is loose, in cannot power the smoke alarm properly. Even if the alarm sounded briefly when the battery touched the terminals, you still need to make sure it is snapped securely in place. Your battery may not be installed properly or snapped all the way in place.Try holding it down for up to 10 seconds (20 seconds on photoelectric models). You may not be holding the test button down long enough.When you are testing your smoke alarm, there are a number of reasons why the alarm might not sound: It is important that you frequently test your smoke alarms. The addition of an EZ Access Battery Door removes the hassles and burdens associated with changing your alarm's batteries.įirst Alert Wireless Interconnect Hardwired Smoke Alarm SA521CN-3ST Mute Button has been included to serve the dual purpose of silencing nuisance alarms and testing the functionality of your alarm. The inclusion of an optional drawer and mounting bracket lock will discourage tampering. An indicator sound is emitted when the batteries need to be replaced. In the event of a power outage, the smoke alarm is still able to function thanks to its two AA backup batteries. First Alert helps you create a comprehensive warning system for you and your property. Some features of a home, such as the number of floors, number/size of rooms, furniture and types of building materials used may reduce the range of wireless interconnect alarms. The communication distance (range) between any two First Alert Wireless Interconnect Alarms is typically 50 ft. Connect up to 18 compatible devices: up to 12 smoke alarms and 6 compatible devices like horns and repeaters. The hardwired smoke alarm can be connected to other compatible BRK and First Alert hardwired alarms for larger buildings such as dormitories, office buildings, and apartments. A patented smoke entry system helps ensures reliable detection by providing a direct air pathway to the sensor. It also distinguishes between real threats and smoke/vapor produced during showering, cooking, and other everyday activities, helping minimize the number of false alarms. The sensor is optimized to detect larger smoke particles produced by smoldering fires, such as those caused by unextinguished cigarettes. The First Alert Wireless Interconnect Smoke Alarm comes equipped with a photoelectric sensor to provide the earliest possible warning of fire. Photoelectric Sensor Warns of Smoldering Fires An integrated battery backup ensures the smoke alarm continues to work even during power outages. This hardwired smoke detector can connect and communicate with up to 18 compatible alarms, so when one alarm is triggered, the entire system reacts. Use this smoke detector to replace an existing hardwired smoke alarm and then install additional First Alert Wireless alarms for an interconnected safety network (additional alarms sold separately). The First Alert SA521CN-3ST Interconnected Smoke Alarm allows owners to create an interconnected fire alarm system without the cost and hassle of wiring. Wireless Interconnect Hardwired Smoke Alarm
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