Military equipment used in war zones for surveillance and tracking is now being used by local police departments.

The Range-R Radar Device has the ability to "see" through walls and right into your home.

It's a relatively new handheld radar device that uses a highly sensitive Doppler motion detector. An officer places the device on any wall, and within seconds, it has the ability to sense through walls, floors and ceilings, detecting even the smallest of movements, like breathing, from as far as 50 feet away, making it extremely difficult to hide.

Originally designed for military use in war zones, it is now being used in the United States and is manufactured and sold in Orlando.

Touted as threat detection for the modern soldier, the Range-R radar device, manufactured by Orlando-based L-3 Communications CyTerra, is now being used by local police.

The company says when minutes matter, the Range-R can be used in hostage situations, fires and natural disasters without putting emergency responders in danger. Yet the technology raises legal questions and strong opinions.

"In any situation short of a hostage emergency, they ought to be in a position where they have to go to court to get a warrant," said Mike Pheneger, with of the American Civil Liberties Union of Florida.

Legal analyst Jaya Balani, with the NeJame Law firm, said there are times when law enforcement can go forward without a search warrant. But when is it OK to invade a person's privacy? That criteria isn't found in the Constitution.

"It could be beneficial when there's a situation where it comes to public safety, or someone who is on the run," Balani said. "But they're going to have to lay out those parameters of when it can and cannot be used."

Unlike thermal imaging, this radar system does not show a picture of what is happening inside the home, but does detect how far away movement is happening. The ACLU calls it intrusion and is concerned law enforcement could violate of the Fourth Amendment, which prohibits unreasonable searches and seizures.

"This, in some ways, is almost more intrusive, because to get this thing operating, the police actually have to trespass on your property to put it on your wall to see what's going on inside your house," said Pheneger.

L-3 Communications said more than 200 devices have been sold to 50 law enforcement agencies throughout the country, but for now, there is no way of knowing just how often it is being used.

In our own checks, we have not found any local law enforcement agencies in Central Florida who would say they are using the device. L-3 Communications also said the Range-R is not available for purchase by the general public.