The Rebarscope^® from James Instruments, enables the user to not only locate reinforcement bars but also determine rebar depth and the rebar size. Is also capable of locating non-ferrous metals: such as copper, aluminum, some stainless steels, wire, and more.

The eddy current sensor is specifically designed to react to the outer surface of the metal object.
It is uninfluenced by small metal particles in the concrete, whether the concrete is fresh or hardened, wet, or dry.
The eddy current sensor also allows the unit to locate both ferrous as well as non-ferrous metals in concrete and other non-metallic construction materials.

The Eddy current principal is the recognised technology for use in rebar location. The Rebarscope sensor has also been designed with temperature compensation circuitry as well. The temperature compensation circuitry not only improves accuracy and performance but allows the operator to use the equipment without a "zero" procedure first. As always only one sensor is required for all depth ranges and functions of the equipment.

The latest in microprocessor technology not only conditions the signal from the sensor for more accurate and dependable results but provides the user with the information they need. Rebar diameter can be estimated by using a simple system of comparison

The microprocessor can also statistically analyze the data, searching automatically for minimum cover points, and the least cover of a group of points. A Cover Map or display of cover points as a symbolic map of a structure can assist the user in finding problematic areas.

Built-in memory can store over 80 thousand individual data points for later processing. Feedback to the user can also be made via the direct view, sunlight readable digital screen, or via headphones. By separating the sensor from the main instrumentation unit, difficult to reach areas can be handled with ease.

The optional Scan Cart^TMits can be used to graphically display a cross-section of the concrete and the location of the metal objects within. With built-in encoder objects can be located with both distance and depth recorded.