Digital Angle FinderThe Digital Angle Finder with a hole to hang the digital angle level is designed for industrial applications that involve setting exact angles, such as niches and bays, sloped roofs and handrails (NOTE: This is not a digital level).Backlit LCD DisplayBacklit LED display that allows data to be read clearly even in low light conditions.Accuracy High Measurement accuracy 0.5, increase/decrease angle: 0.1, angle range is 0-225, which allows you to accurately measure the angle with its horizontal and vertical level.Mechanical LockThere is a lock button to keep the angle invariable angle in the line process and a HOLD button to lock the angle.Auto Power OffIt is powered by a 9 volt battery, included and can automatically turn off after 5 minutes of inactivity to extend battery life.