Over the past 10 years, the U.S. Army has used several generations of portable "seeing through walls" sensors. A series of sensors Eagle uses low-power ultra-wideband radio waves to detect what is behind the walls (excluding railways). These devices (there are several versions) weighs 2.5 kg less, and they are portable in the hand (or hands). The model M can find the movement of people or animals at a distance of up to 6 meters in 20 cm concrete wall. The P can build through the land to a depth of 3-4 meters and detect objects and tunnels. V model provides a more accurate picture, but more small distances. Eagle 45W fastened on his hand, which is very comfortable in urban combat, when the enemy is moving through the building, outside of which is watching.
All of these devices use batteries for their operation for about 4 hours. More of early sensors looked like a game controller and passed image on the small screen, also had the ability to wirelessly transmit images to a laptop computer that could use special software to improve the image properties. These non-radar sensors are popular in the middle of police officers and firefighters, and those who need to find behind the walls or under roads equipment out of service.
In this kind of equipment is nothing new. 5 years ago, troops began use chetyrehkilogrammovoe device Radarvision. While this device could not build through the iron wall, he could convey the image of anyone, though what is behind the wall of a different material, including up to 30 cm brick, concrete or stone. It also allows you to create several wall. Using a 90-minute battery created image very decent properties, especially moving objects. Competing apparatus weigh only 3 kg and have a range of up to 20 meters and battery operation of the apparatus providing for 2.5 hours. Latest devices use new technology, they are lighter, more reliable and provide a more accurate picture. They can also dress on hand, with an eyepiece mounted on the helmet to provide visualization.
This equipment is not used for each operation, but quite often in order to force the enemy to be very resourceful, trying to hide things (usually unsuccessfully). The troops like this device for its portability and ease of use. Sensors can find a hidden weapon, also hidden in buildings and shelters people. These sensors also help to avoid civilian casualties in the middle of the population, so they allow you to find out who is in the building before it by storm. Kids is relatively easy to identify, and it usually means "civilian persons".