Achieve exceptional measurement accuracy with the GPR121 Circular Prism with Holder, a premium Swiss-style prism assembly designed for demanding surveying applications. This high-quality optical instrument embodies the precision and reliability that professionals expect from Swiss engineering.
GPR121 Circular Prism with Holder Equipped with a 64mm prism offering selectable accuracy of 2, 3-4, or 5-8 seconds.

Durable metal construction: Mounted in a sturdy metal holder with detachable target for enhanced versatility.
True Swiss offset: Features a constant 0mm offset for simplified setup and consistent measurements.
GPR121 Circular Prism with Holder Available with standard copper coating or optional double copper-coated prism with blue coating.
















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