Topcon’s 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 vertical alignment control easier and faster for any application. The LS-100D features an extra-wide beam capture sensor that also rejects annoying interference from strobe light exposures. The large and bright LCD displays (front and back) feature 9-channels of grade information and digitally display the distance to on-grade. By pressing the hold button, the display is locked so the user can conveniently read the results.