Trimble Tribrach with Optical Plummet Precisely center prisms, targets, and GNSS equipment over a survey point with this genuine Trimble Tribrach with Optical Plummet. The integrated optical plummet allows accurate positioning directly over a control point, making this a versatile mounting solution for conventional surveying, control, and GNSS setups. Key Features Integrated optical plummet enables accurate centering over survey and control points. Three-jaw tribrach design provides secure mounting for compatible surveying accessories. Ideal for prisms, targets, and GNSS setups requiring direct optical centering. Genuine Trimble tribrach designed for precise, dependable field performance. Compatible With Trimble prisms, targets and GNSS