Profile: Opti-cal Survey Equipment Ltd sells, hires and services new & re-conditioned land survey & laser equipments. Surveying equipments include levels, lasers, theodolites, GPS survey equipments, laser distancemeters, surveying accessories, laser scanning and monitoring systems. DISTO™ is a hand-held laser meter for distance measurements of length, squares and volumes with the press of a button. Viva GS08 NetRover® is a lightweight GPS survey equipment and cable-free network rover. It is turned-on and a connection is made to the local reference network. With full support of RTCM 3.1 transformation message, positions are automatically supplied in local coordinates.