The TRM02 TR Large Monitoring Prism is engineered for long-range precision and stability in professional surveying and geotechnical monitoring applications. Designed for exceptional performance, this Trimble Survey Monitoring Prism combines robust construction, weather resistance, and flexible installation to deliver consistent results in the toughest environments.
This Large Monitoring Prism features a 62 mm full-size silver-coated prism optimized for high-accuracy, long-distance monitoring. It offers an absolute offset of -40 mm with ±2 mm precision and a dual-axis pivot system for fine adjustment and stable alignment. The protective rain hood shields the prism from dust, snow, and moisture—ensuring reliable measurements even in challenging field conditions.

Built with a rugged L-bracket base measuring 2.3″ × 3.4″, the TRM02 TR Large Monitoring Prism provides secure installation through five mounting holes for maximum stability. Compatible with all M20 screw-in prism canisters, it is designed to integrate seamlessly into Trimble and other professional monitoring systems. Lightweight yet durable, it’s ideal for long-term structural observation, mining, and deformation monitoring projects.


















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