Upgraded 90 Degree Prism Right Angle Prism L Bar Copper-Coated Mini Prism Total Station Prism Used for Tunnel Surveying

Mini Prism 5 arc second accuracy. Tunneling prism 25.4 mm diameter 8.92 mm offset. Great quality optiacal glass and copper coating. Upgraded 90 Degree Prism Right Angle Prism L Bar Copper-Coated Mini Prism Total Station Prism Used for Tunnel Surveying. Features: Mini Prism 5 arc second accuracy. Tunneling prism 25.4 mm diameter 8.92 mm offset. Great quality optiacal glass and copper coating. L Bar mini prism with Aluminum holder and housing. Measuring distance: more than 600m if weather is good, will be 1100m. Specifications: Material: copper silver coated. Size: approx 60x75x60mm/2.4x3.0x2.4in. Package Includes: 1x Monitoring Prism. note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item