Topcon LS-100D Digital Laser Receiver/Sensor (Rod Bracket Holder 110 Included) Topcon Positioning Group announces the release of the latest addition to its line of compact digital laser sensors — the LS-100D. The sensor digitally displays the offset value to on-grade, which is designed to help make elevation and vertic Topcon 1026030-01 - LS-100D Laser Receiver w/ Rod Clamp