The Bosch GOL 26 D Professional Optical Level is the ideal levelling device for surveyors and other professionals. This powerful telescope offers 26x magnification. There is also a built-in target collimator and integrated circular vial. The extremely robust design makes it ideal for outdoor use. A self locking compensator protects the pendulum against damage and loss of calibration during transportation. Supplied with: 1 x Plumb Bob. 1 x Lens Cover. 1 x Adjusting Pin. 1 x Hex Key. 1 x Carrying Case. Specifications: Unit of Measure: 360 degrees. Magnification: 26 x. Accuracy: +- 1.6mm at 30m. Working Range: 100m. Dust and Splash Protection: IP54. Operating Temperature: -10 - 50C. Storage Temperature: -20 - 70C. Tripod Thread: 5/8in. Weight: 1.5kg.