GSR Inclinometer 45°-0-45° Dual DisplayA very popular Dual Scale Clinometer for many types of uses. Measure pitch & roll, incline and slope Two scales, one + 45 and a fine scale of + 5 Made of ABS plastic with easy to read markings Measures 100 x 81mm. Fixing the inclinometer to your boat or machine is easy. Just attach it using the 4 pre drilled holes, 1 in each corner, (screws not supplied). Used by geologists for checking rock face angles or fit into earth works machinery as an