The MP109 Angled Mini Prism series is designed for precise, long-term structural and deformation monitoring in challenging environments such as railways, bridges, and tunnels. Available in two models — MP109S Single Retro Reflective Mini Prism and MP109D Dual Retro Reflective Mini Prism — this system provides dependable accuracy and flexible installation options for various engineering applications.
The Double Side Mini Prism configuration allows simultaneous measurement from multiple directions, ensuring high precision and efficiency in data collection. Mounted on an inclined plate, the Double Side Mini Prism enables accurate readings even from oblique observation angles, making it ideal for confined or limited-access locations.

Built from durable, weather-resistant materials, the Double Side Mini Prism withstands harsh outdoor conditions while maintaining optical accuracy. Its permanent mount design allows remote measurements without interrupting traffic or construction activities, offering both safety and convenience for long-term monitoring projects.




















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