The Duet 3 Scanning Z probe is a CAN-FD connected inductive sensing board, with compatible inductive PCB coils. It allows for a point mesh of the bed to be built up quickly as no movement in Z is required to read the bed distance, and individual readings happen very quickly.
Product Page: https://www.duet3d.com/Duet3ScanningZProbe
Documentation is here:
Duet 3 Scanning Z Probe Documentation
licensed under the "CERN-OHL-S v2" or any later version plus the "Additional Duet3D Licence Terms", see https://github.com/Duet3D/Duet3-Mainboard-6HC/blob/master/LICENSE