Check your smoke detector! Universal Security Instruments 10-year-battery-operated ionization smoke and fire alarms with model numbers MI3050S and MI3050SB and with date codes between 2015JAN19 through 2016JUL11 are being recalled. They may not work.

The smoke alarms can have a misaligned internal switch causing the alarms to not activate properly, posing a risk of failure to alert consumers to a fire. The company has received 134 reports of failure to properly activate during installation. Online through specialty wholesalers and others from July 2015 to December 2016 about $20.

Consumers should immediately inspect their smoke alarms to determine if it will activate appropriately. Press the test button to determine if it is operating properly. If the alarm sounds no further action is required. If the smoke alarm does not sound during the test, consumers should immediately contact Universal Security for a replacement.