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HUNTSVILLE, Ala. – Universal Security Instruments recalled 180,000 smoke alarms because they may not alert consumers to a fire.

The battery-powered smoke alarms can have a misaligned internal switch causing the alarms to not activate properly, according to the Consumer Product Safety Commission (CPSC). The smoke alarms are white in color and 5½  inches in diameter.

This recall involves smoke and fire alarms with model numbers MI3050S and MI3050SB and with date codes between 2015JAN19 through 2016JUL11.

Universal Security Instruments Recalls to Inspect Smoke Alarms Due to Risk of Failure to Alert Consumers to a Fire

Consumers should immediately inspect their smoke alarms to determine if it will activate appropriately by pressing the test button. If the alarm sounds no further action is required, according to the CPSC.

If the alarm does not make any noise during the test, immediately contact the company for a replacement.

The company has received 134 reports of failure to properly activate during installation.

Contact Universal Security Instruments at 877-612-6955 or online at and click on “Product Safety Notice” for more information.