Enhance the precision and durability of your surveying and measuring projects with this high-quality Prism Lens, crafted from superior K9 glass for exceptional clarity and accuracy. Designed with a silver-plated prism cylinder measuring 62mm in diameter, this prism ensures precise readings with an accuracy of less than 5 arcseconds, making it ideal for professional use in demanding environments. Key Features: · Premium K9 Glass Material: The prism lens is assembled from high-grade K9 glass, providing excellent optical performance and long-lasting durability for reliable field measurements. · Silver-Plated Prism Cylinder: Protects the prism effectively while maintaining exceptional accuracy and stability during use. · High Accuracy Design: Features a tilted target that can be inverted and finely adjusted to offsets of 0 or -30mm, accompanied by an aiming sight that enhances targeting precision. · Standard Size & Protective Cover: The circular prism lens boasts a standard 64mm (2.5 inches) diameter, simplifying installation and maintenance. It comes with a protective cover to safeguard the lens from damage during transport and use. · Wide Application Range: Perfectly suited for various detection and measurement tasks in subways, railways, tunnels, dams, steep slopes, mines, highways, and other complex construction and engineering environments. Specifications: · Material: K9 Glass, ABS · Effective Diameter: Approx. 64mm / 2.5 inches · Constant: 0mm, -30mm · Accuracy: Less than 5 arcseconds · Prism Cylinder Diameter: 62mm Package Includes: · 1 x Prism Lens This Prism Lens offers a robust and precise solution for professionals requiring reliable and accurate measurements in challenging conditions. Its combination of high-quality materials, advanced design, and versatile compatibility makes it an essential component for enhancing the effectiveness and accuracy of your surveying instruments.