I bought these to replace brk smoke detectors installed by my builder in the early 2000s.
Brk smoke alarm 9120b battery replacement.
Open the cover and take out the battery.
120v ac dc smoke alarm 10yr lithium battery locked battery drawer 120v ac dc ionization smoke alarm with a 10yr lithium battery back up.
If your smoke alarm is chirping even though it has a new battery try these troubleshooting steps to clear out residual charge from the old battery.
These looks slightly different but the connector hasn t changed and it only took me a couple of minutes per smoke detector to swap out the old one for the new one.
The smoke and fire detector comes with a 9 volt battery and features a pivoting easy to access battery drawer that allows you to replace the battery without dismounting the alarm.
This will fully reset the smoke alarm and drain any charge.
The first alert 9120b hardwired smoke alarm with battery backup comes equipped with an ultra reliable ionization sensor to provide the earliest possible warning of a fast flaming fire.
Back of the alarm.
4120b 48p 9120b 48p ac dc brk smoke 48 pack 4120b gfd 9120b gfd ac dc brk smoke gravity feed display 4120lb 9120lb ac dc brk smoke w lithium battery 4120sab obsolete not needed silence is a standard feature 4120sb obsolete not needed silence is a standard feature 4120sb 12st 9120b 12st ac dc brk smoke 12 pack stadium tray 4120sb2 9120b2 ac dc.
Hardwired interconnectable photoelectric and ionization smoke alarm with battery backup.
Under normal conditions you should not have to replace the battery for the life of the alarm.
If you are installing the smoke alarm for use by others you must leave this manual or a copy of it with the end user.
120v ac dc smoke alarm the 9120 series smoke alarms have been designed to install faster perform better and be even smarter than before.
The sensor is optimized to detect flaming fires such as those caused by paper kitchen grease and other fast combusting materials.
First alert brk 7010b hardwire smoke alarm with photoelectric sensor and battery backup 2 pack 4 3 out of 5 stars 32 brk first alert 9120b 120 volt wire in with battery backup smoke alarm.
This smoke alarm is designed for hardwired installation but it also features a battery backup that helps ensure continued functionality in the event of a power outage.
The battery drawer is shipped pre locked so battery will not be discarded prematurely.
120v ac dc smoke alarm with alkaline battery.
Models 9120 printed in mexico 9120b m08 0134 003 k1 04 07 all first alert and brk smoke alarms conform to regulatory requirements including ul217 and are designed to detect particles of combustion.
These improvements help reduce nuisance alarms and save you time and money.
