ZBL-R660 concrete reinforcement scanner features: Using multi-coil technology, the location of steel bars is more real-time and accurate; Display the steel bar location, spacing, and protective layer thickness on the same screen. USB data transmission. The contour and grid scanning mode can reach 65m, and the signal scanning mode can reach 10m. Two data viewing methods, chart and list, are convenient and flexible to operate and quickly view data. Bluetooth data transmission. Provides five scanning modes to adapt to different measurement environments.