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.
Brk smoke alarm 9120b battery replacement.
120v ac dc smoke alarm 10yr lithium battery locked battery drawer 120v ac dc ionization smoke alarm with a 10yr lithium battery back up.
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.
120v ac dc smoke alarm with alkaline battery.
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.
Hardwired interconnectable photoelectric and ionization smoke alarm with battery backup.
The sensor is optimized to detect flaming fires such as those caused by paper kitchen grease and other fast combusting materials.
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.
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.
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.
I bought these to replace brk smoke detectors installed by my builder in the early 2000s.
The battery drawer is shipped pre locked so battery will not be discarded prematurely.
Under normal conditions you should not have to replace the battery for the life of the alarm.
Back of the alarm.
Remove the alarm from your ceiling or wall.
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.
Open the cover and take out the battery.
Press and hold the test button for 15 30 seconds.
These improvements help reduce nuisance alarms and save you time and money.
120v ac dc smoke alarm the 9120 series smoke alarms have been designed to install faster perform better and be even smarter than before.