For many people who live alone, a personal emergency reporting system (PERS) could mean the difference between life and death during a crisis. One company that makes devices that allow you to call for help has expanded a recall because the devices could fail.

This Ruth to the Rescue consumer alert involves the Linear PERS transmitters. They are components of Linear PERS, or personal emergency solutions products, and allow users to push a button on the transmitter to summon assistance.

In the affected models, the batteries used in the transmitters can fail to emit a low battery warning to the user. Then, the batteries might not have enough

power to function properly. During a crisis, the customer may believe they have summoned help, but no one will be getting the call.

What You Need To Know

The transmitter may be worn as a pendant on a lanyard around the user's neck, on a band around the user's wrist or as a belt clip.

The recall includes model numbers DXS-62A (black wristband and a gray pendant), DXS-62A1 (ivory plastic belt clip pendant) and DXS-64 (gray plastic pendant with a green circle in the center) which all have batteries that are sealed into the products. The manufactured date range of the recalled products is from June 2008 through April 2011, written as a date code. For example, the date code MD1105 represents YYMM format or a manufacture date of May 2011. The date code, model number, Linear LLC and other information are found on the back of the transmitter.

So far, the company has one report of a transmitter that failed to operate, but has not heard about any injuries connected to the issue.

This new expanded recall affects about 175,000 devices. An additional 48,000 were previously recalled in December of 2013.

If you have questions, contact Linear toll-free at (855) 554-2384 from 11 a.m. to 7:30 p.m. ET Monday through Friday or online, click on Recalls for more information. Consumers will receive a new replacement transmitter at no cost.

More information can be found on the U.S. Consumer Product Safety Commission's website.