GMP112 Hidden Point Set
GMP112: hidden point pole extension for GMP111 – includes a mini reflector with a holder and a 30 cm pole adaptor.
(GMP111 set required)
The measurement involved the record of angles and distances to each prism. The software records coordinates of an appropriate point due to attributed set’s parameters. Optionally, when calculating a surveyor may determine coordinates of a point where the pole’s point was driven in.