The PENTALIGN is a highly accurate rotatable pentaprism used for checking perpendicularity. When combined with an external laser source it creates a precise perpendicular laser plane to the incident beam. With a 2-axis sensor integrated into the pentaprism, the laser plane created after reflection can be measured with an accuracy of .01mm.
It has a compact design with various fixation possibilities such as magnets, tripods and rods. This makes it the perfect perpendicularity measurement tool.