This is a portable digital protractor with LCD display for easy reading of measurement data. Easy to operate and use, great for precision angle measurements. Can be widely used for angle measurement in automotive, woodwork, building, drilling machinery etc. Features: Zincalloy shell, strong durability and long service life. Relative/absolute measurement interchange at any position. Large LCD display for easy reading of measurement data. And the readings can be flipped, more convenient to read. Data hold function. Angle and slope readout conversion. Built-in magnet in bottom surface, convenientto be attachedto the workpiece for easy measurement. Low power consumption, it willautomaticallypower off in 5 minutes when not in use, saving power and extending battery life. Portable size, convenient to co-work with other measuring tools and enlarge measuring range. Can be widely used for angle measurement in automotive, woodwork, building, drilling machinery etc. Powered by 2 * AAA batteries(not included), easy to install and use. Specifications: Material: zinc alloy Type: type 1, type 2 (optional) * Type 1: Only one surface with magnet * Type 2: Three surfaces with magnet Measuring range: 4 * 90 Resolution: 0.05 Accuracy: 0.2 Repeatability: 0.1 Working temperature: 0~40 Battery: 2 * AAA batteries (not included) Item size: * Type 1: approx. 57 * 57 * 30.5mm / 2.24 * 2.24 * 1.20in * Type 2: approx. 61 * 59 * 30.5mm / 2.40 * 2.32 * 1.20in Package size: approx. 90 * 80 * 40mm / 3.54 * 3.15 * 1.57in Package weight: approx. 240g / 8.47ounce (type 1); approx. 260g / 9.17ounce (type 2) Package List: 1 * Digital Inclinometer 1 * Small Screwdriver 1 * User Manual