Product Features: Ultra light aluminum alloy shell has great durability.Portable size, convenient to work with other measuring tools and enlarge the measuring range. Relative / absolute measurement exchange at any position. Magnet built into the bottom surface, which is convenient to be attached to the measuring object. Quick display of the measured value on a large LCD screen. Data hold and slope function. Used for angle measurement in automotive, carpentry, construction, drilling machines, etc. Specifications: Material: aluminum alloy Power source: 2 AAA batteries (not included) Measuring range: 4 * 90 Working temperature: 0 ~ 40 Accuracy: 0.2 Resolution: 0.05 Repeatability: 0.1 Item size: 57 * 55 * 27mm / 2.24 * 2.16 * 1.06oz Package size: 80 * 65 * 35mm / 3.15 * 2.56 * 1.38in Package weight: 84g / 2.96oz Package List: 1 * Digital inclinometer 1 * User Manual