The Bosch GOL 26 D Professional Optical Level is extremely robust and ideal for outdoor use. Weighing in at 1.7kg and with its sturdy metal housing, dust and splash protection (IP54) it is perfect for use on site. It has a built in target collimator and an integrated circular vial along with a compensator lock for easy and safe transport. The penta prism makes it easy to read the circular vial and there is a large focusing knob for easy alignment. There is a fast aperture for excellent staff reading and it boasts high precision over long distances. It features erect image and endless degree/angle settings using the knobs on both sides with friction-braked rotation. Its working range is up to 100m. This product comes complete with adjusting pin, allen key, carrying case, lens cover and plumb bob.