The digital magnetic angle finder is a portable and lightweight tool, which can be easily carried with you while working at heights. It has a magnetic base that can be attached to the work surface area that is going to be measured. It also provides absolute and relative measurements, including the ability to zero set to any position. It is very useful for measuring or setting angles, and checking relative angles, measuring bevel angle of miter etc.Its wide application includes but not limits to house decoration, building construction, automobile testing and repair, road and bridge slope detection. It is a great helper and choice for angle measurement and adjustment. Features: 4 units and 2 modes of measurement High accuracy and resolution With calibration function V-groove on the measurement base Grooves on the two sides housing Bright LED display Auto-rotating display Hold function Low battery indicator Lightweight and mini-sized with a free carrying pouch Specifications: Measuring range of display: 4 x 90° Accuracy: 0 & 90°: ±0.1°, the rest: ±0.2° Resolution: 0.05° Relative Measurement: set any angle to zero Unit of measurement: (degree °/ % / mm/m / IN/FT). Working Temperature: 0~40°C (32~104°F) Storage Temperature: -10~50°C ( 14~122°F) Dimensions (L*W*H): 68.4*31.8*59.9mm Weight: 80g (not containing batteries) Packaging: hard cardboard box Set Includes 1 x Digital Angle Gauge 2 x 1.5V AAA batteries (Pre-installed) 1 x Mini screwdriver User manual (English) Storage protection bag