From Strategy Page:There is another player in the market for "see through walls" devices. Two years after the first of these systems, RadarVision, became available, we now have the Xaver 400. This one weighs 6.5 pounds, and can see through non-metal walls at a range of up to 20 meters (63 feet). The battery lasts 2.5 hours and the device can broadcast images, up to a hundred meters, to another display.
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My Comment: I can easily see these devices installed on Predators and other UAVs very soon.