Leica GRZ122 360 Degree prism Total stations that use automated target recognition and lock technology are best paired with an omni-directional prism. This type of prism is more convenient for operators because they do not have to constantly align the prism to the instrument.
Professional GPR121, GMP101
Mounted in metal holders for the best centering accuracy, stability, and longevity.
The Beam Deviation of the GPR121 is less than 2" and for the GMP101 is less than 6".
Ideal for precision and long range distance measurement.
Basic GPR111, GMP111
Mounted in polymer holders which are unaffected by the elements, even when exposed for long periods.
The GPR111 has a Beam Deviation of less than 8".
These light-weight prisms provide sufficient accuracy for normal surveying applications.
The CPR105 patented Flat Prism provides two back-to-back reflectors, both having 0-constants.
The unique Cat-eye reflector provides an RL measurement range of 250 m.
Ideal for traversing, since the prism can be measured from both sides without requiring rotation.
GRZ4, 360° Reflector: Suitable for all robotic TPS work performed with a survey pole. Large rubber mountings protect the prism. Overall 3D pointing accuracy of 5.0mm. When aiming on a side marked by a yellow arrow, an accuracy of better than 2.0mm can be achieved. ATR range of 600m (2000ft).