Conveniently storable in the instrument container, the GMP111-0 offers high positional accuracy due to their small size. The GMP111-0 is mounted in a polymer holder with 1/4" thread fittings, has a built-in levelling bubble and is supplied with the GLS115 four-section pole and attachable point (1/4" thread). With this arrangement a point can be measured with very high precision. Holder and housing are made of red polymer, fiber-reinforced. Built-in level bubble. Attachable point.