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GUILFORD COUNTY, N.C.-- Last year alone, Guilford County Sheriff's Deputies estimate they responded to around 100 missing persons calls.

While tracking dogs and airplanes can be helpful in finding missing people who have disorders that affect the brain, they're not guarantees.

"How long does it take to drown? How long does it take to fall off a cliff? How long does it take to run off a highway? I mean we need to find these folks quickly," said Sheriff B.J. Barnes.

Project Lifesaver is a locating system that will assist the county in finding those lost or missing. People in the program wear a bracelet that transmits their location.

"This is just another tool in our arsenal to help locate these folks, who do tend to wander," said Cpl. Bryan Herndon.

To demonstrate how the radio transmitter works, News 14 Carolina hid the device outside the Sheriff's Office. And just four minutes later, deputies were able to track down the transmitter using a hand-held receiver.

"It will provide a sense of security and just one less thing that we need to worry about," added Monique Justice, who knows what it feels like to have a missing child.

At age 7, Justice's son, who has autism, ran away from home and was found at a nearby lake.

"It just happens in the blink of an eye. You turn your head for 3 seconds and the next thing you know they're gone," Justice added.

Which is why she has pushed so hard to get this type of equipment in her community.

"There are children and adults that do not speak and if they do not speak they can't tell you that they're lost,” said Justice.

And thanks to grant funding and community partnerships, those qualifying for the program will receive a transmitter free of charge.

"We're having more and more Alzheimer's patients and the rate of autism has exploded so we're going to have more and more of these folks in our society and our populations. And it's important to have these tools available so that if these families want to utilize it, it's there for them," added Herndon.

Anyone qualifying for the program will receive the transmitter free of charge.

There is a $20 a month fee for maintenance and battery replacement, however those unable to pay will still be considered for community partnership funding.