For users seeking more advanced features like 2D imaging or heat maps, Screening Eagle
Place the probe flat on the concrete surface. Move it slowly in an "S" pattern. The device will emit a tone that increases in pitch as you approach a rebar. The manual explains that the peak tone indicates the center of the bar. proceq profometer 4 manual
When the visual indicator (rifle scope or LED) is centered, the probe is directly over the rebar. For users seeking more advanced features like 2D
is a non-destructive eddy-current device used to locate rebar and measure concrete cover. proceq profometer 4 manual