It can scan the location and distribution of rebar, measure rebar's concrete cover meter and diameter in bridge, tunnel wall and other constructions. It can detect ferromagnet and conductor like electric wire, heat and water pipeline, cable etc, in non-ferromagnetic media, such as in wall or floor, and find their distribution and location. The host and the sensor are integrated with more convenient, accurate and quicker operation. The transflective colorful 3.5 inch LCD screen are clearly visible in bright outdoor or indoor and in the dark; The multi-coil design leads to faster speed, higher accuracy and higher resolution;, Manufacturer: HVSYVVSRL