'-30 mm Premier Prism Assembly

The Seco -30 mm Premier Prism Assembly offers surveying professionals a copper-coated prism inside of a heavy-duty plastic canister. This prism has a 62-millimeter diameter, -30-millimeter offset, and less than 5 arc second accuracy. Attached to the prism canister's M20 thread is an aluminum tilting holder with a front locking clamp, 100-millimeter axis height, and 5/8 x 11-inch mounting thread. This versatile, water-resistant assembly also features a 6-inch by 9-inch target.