High precision: The digital level with a 4 × 90° (0–360°) measuring range supports an accuracy of ±0.1° at 0° and 90°; ±0.2° at other angles. It displays angle and bevel readings in °/%/mm/m/in/ft. With the reading hold function, it is convenient to save readings with this digital level inclinometer box, ideal for automotive, woodworking and mechanical industries, machinery, medical fields, etc.LED display with audible alarm: Equipped with LED technology for a brighter display, this angle protractor makes it easier and clearer to read values, even at night. The displayed value automatically reverses when the electronic level is upside down. Furthermore, the audible signal is routed via beeps when you reach 0° or 90° (+/-1°). 【Absolute and Relative Measurement】 This angle finder supports absolute angle measurement to test if the work surface is level, for checking roof slopes, wheel alignment, etc. Additionally, this protractor allows you to check relative angles between surfaces. 【Magnetic V-Groove Base】The V-groove base with powerful magnets allows for secure attachment to curved or cylindrical magnetic surfaces such as metal pipes or trees. Durable, robust aluminum frame for precise leveling measurements 【IP54 Waterproof and Dustproof】The inclinometer comes with IP54 protection, making it suitable for use in harsh environmental conditions. The battery cover and other highly waterproof designs ensure proper operation in environments with splashes of water and dust.Size: 150 mm rangeColor: BlackQuantity: 1 pieceSpirit level only, nothing else included