Leica GRZ4 360° Reflector Prism
Suitable for all work performed with a survey pole. The GRZ4 boosts an overall 3D pointing accuracy of 5.0mm. However this accuracy can be further improved when aiming on a side marked with a yellow arrow allowing for accuracy of 2.0mm and an average true range (ATR) of 600m or 2000 ft. The GRZ4 comes standard with a large rubber mounting, protecting the prism.