Japan Radio NJJ-95B Reinforced Concrete Radar.
Japan Radio NJJ-95B "Handy Search" Radar
The NJJ-95B is the latest upgraded version of the highly reputable NJJ-95A "Handy Search" Reinforced Concrete Radar. The NJJ-95B can sense the depth of up to 30 cm; 10 cm deeper than the conventional device. This device radiates electromagnetic waves through a concrete surface and receives reflected signals from objects such as reinforcing steel bars, cavities, or other objects that have different electrical characteristics from concrete. Object location and depth are then displayed and recorded as image data.