Package Included: 1×Digital Angle Level Meter（400mm） 1×Bag or 1×Digital Angle Level Meter（250mm） Features: -The digital protractor/angle finder is a one-of-a-kind product that measures angles accurately and quickly. -It's ideal for checking and transferring angles for remodeling, cabinet installation, counter installation, measuring roof angles, fitting up windows or doors, aligning wood forms for concrete pouring, fitting up of carpeting and parquet or tile floors, aligning and checking of banisters and rails, checking for correct fit-up to any angled surface, and much more. -It features a back-lit digital readout and has a hold function to freeze the measurements. Thumb-screw locks down the hub when needed to prevent movement of the measured angle. Two standard levels set at 90 degrees to each other for applications when you need a standard level. Specification: Measurement accuracy :±0.5 Material: Aluminum alloy Net weight: 0.55 Length: 400/250mm Measuring angle range: 0-225 Degree Automatically shut off after five minutes. Display reading Hold function Illuminated LCD display Battery: 9V (The battery not including )