Lost Pet? There's an App for That

Imagine being able to track the location of a lost pet using GPS.

Dozens of North Texans are trying to locate their missing pets on Craigslist. About 50 lost pet ads were posted on Tuesday.

But pet owners can find their best friend with the help of the Garmin GTU 10 tracker, which AT&T offers customers.

The small, waterproof device fits in a small pouch that can be clipped onto a pet's collar.

GPS system information lets pet owners track their pets anywhere in the world. Their positions can be viewed on a smartphone and over the Internet.

Pet owners can even put up boundaries and sign up for email or text alerts when the pets leave a designated area.

"So if your dog was able to get out of your yard, you would be noticed via text messages that your dog exited this area," said John Young, of AT&T.

The tracker costs about $149, including free tracking for a year.

More: Garmin GTU 10 Tracker

NBC 5's Amanda Guerra contributed to this report.