Combination of compass and optical clinometer in the same unit, recommended in parabolic antenna installations. Anodised aluminium construction with cord and observation through optical lens. Clinometer graduation: 0-90º and 0-150%; optical reading accuracy (observation): max. ± 0.25º of the real angle; reading accuracy per sphere: max. ± 1º of the real angle; size: 160 x 54 x 16 mm; weight: 230 g.