Trimble 360° Mini Prism, 0.5 in Provide reliable 360-degree prism tracking in a compact format with this genuine Trimble mini prism. Featuring a 12.7 mm (0.5 in) silver-coated prism and a +2 mm prism constant, it allows measurements from any horizontal direction and is well suited for robotic total station surveying and compact prism setups. Key Features 360-degree prism design allows measurements and tracking from any horizontal direction. 12.7 mm (0.5 in) silver-coated prism provides a compact reflector for robotic and conventional surveying applications. +2 mm prism constant for accurate distance measurements with compatible total stations. 5/8"-11 mounting thread provides compatibility with standard survey rods, adapters, and mounting accessories. Compatible With Trimble S Series Total Stations