SECO Optical Plummet Twist-Focus Tribrach Gray

The SECO 2152-04 series tribrach features a twist focus, 2.5X magnification, leveling screws with center line. It has an 8-minute circular vial, 3-prong forced centering and a 5/8 x 11 base. Easy plummet adjustment is achieved using the four opposing screws. The optical plummet has a focusing range of 1.5 to 50 ft (0.5 m to 15 m).
Weighs 1.85 lb (0.84 kg)