Bosch 0 601 076 500 Professional Digital Angle Measurer  The GAM 220 Professional Digital Angle Measurer is a joy to use, giving precise and easy angle measurement every time. Achieve fast and precise calculation of angles to cut down on work time, calculations and wasted materials when they go wrong. A must-have tool for Joiners, Carpenters and those involved in the construction business.  Features:   Angles can be transferred precisely onto workpieces by means of a mechanical locking screw  Optimum readability due to rotating, illuminated display  Hold function for holding and transferring the measuring result at the press of a button  Robust and compact design with IP54 protection  No calibration required   Comes With:   4 x AA Batteries  Moulded Canvas Carry Case  Instruction manual   Specification:  Part number (EAN): 0 601 076 500(3165140798846)  Measurement range: 0 - 220°  Measurement accuracy, angles: ± 0.1°  Measurement accuracy, vials: ± 0.05°  Accuracy of angle calculation: ± 0.1°  Power supply: 4 x 1.5 V LR6 (AA) Supplied  Battery power, approx.: 80 h  Automatic deactivation, approx.: 30 mins  Arm length: 40 cm  Length: 446 mm  Width: 52 mm  Height: 60 mm  Length x width x height: 446 x 52 x 60 mm  Weight, approx.: 1.3 kg