FREE GROUND SHIPPING for this item, and anything else you add to this order. Designed to be suspended from a string or small rope, these suspension compasses are traditionally used in the mining industry. Each Suspension Mining Compass Kit includes a 5-inch diameter gimbaled suspensions compass, a separate suspension gradiometer (also called clinometer), plastic wire clips (to lock the units from sliding down), and a plastic carrying case with shoulder strap. The dry compass capsule features a locking needle and one degree bezel resolution. The separate gradiometer features one-half degree resolution. Full Kit Weight (with case): 2 lbs. Case Outer Dimensions: 10in x 7in x 2in Gimbaled Compass Weight: 15.7 oz. Compass Needle Length: 100mm / 4in Compass Resolution: 1 degree Compass Accuracy: 0.5 degree Gradiometer Resolution: 0.5 degree Gradiometer Radius: 4in Recommended maximum rope diameter: 3/16in
