Fast and precise calculation of angles. 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.Specification Measurement range: 0 - 220. Measurement accuracy, angles: 0.1 Accuracy of angle calculation: 0.1 Power supply: 4x 1.5 V R6 (AA) Battery power, approx.: 80hr Automatic deactivation, approx.: 30 mins Arm length: 400mm Length: 446mm Width: 52mm Height: 60mm Weight: 1.1 kg