Trimble GEDO Precision Prism in Tilting Holder, -35 mm – P/N 4 520 002-35 Perform precise rail, tunneling and surveying measurements with this 42 mm precision prism mounted in a durable aluminum tilting holder. Designed with a Leica/Wild-style socket connection, the prism can be tilted vertically and rotated horizontally while maintaining the measurement point at the center for flexible target positioning. Key Features 42 mm precision prism mounted in a durable aluminum tilting holder. -35 mm (Z) prism constant with a 70 mm prism height for precise surveying applications. Prism can be tilted vertically and rotated horizontally while maintaining the measurement point at the center. Leica/Wild socket connection integrates with compatible GEDO prism holders, adapters and track-marking systems. Compatible With Trimble GEDO rail surveying and track measurement systems Trimble GEDO accessories using a Leica/Wild socket Compatible Leica socket track-marking systems