Draper Digital Box Level and Angle Gauge (29098)This digital box level and angle gauge can measure or set angles, and check relative angles with its zero calibration feature. The reverse contrast display improves visibility in low light conditions and automatically rotates when upside down for easy viewing. It is made from robust plastic and has a strong magnetic base to attach to metal surfaces for hands free use. The V groove edges enable optimal alignment on conduits and pipes for bending and