Pentagon prism pgp2

Double pentagon prism (or angle prism) with see-through Quickly setting out angles and checking straight lines The double pentagon prism is a simple but important optical instrument for setting out right angles or checking right angles, placing a point on a straight line (i.e. dropping the perpendicular from the point onto this straight line) and aligning yourself in a straight line. The double pentagon prism is easy to use. Two pentagon glass prisms are on top of each other in the double pentagon prism. For measurements above a measuring point, place the prism on a plumb rod or hang a plumb line in the notch on the bottom of the housing. The location of the prism, which is relevant in terms of measuring technology, vertically above a measuring point, can therefore be easily determined. 2 prisms (90° left/right) and see-through High accuracy <1' Metal version and protective ring STANDARD DELIVERY PGP2 pentagon prism Case SPECIFICATIONS Measuring accuracy: <1' Weight: 0.15 Kg Dimensions: 7x13x6cm