Digital Display Level Box Angle Gauge Digital Inclinometer Aluminum Alloy Shell Electronic Protractor with Backlight 4*90° Measuring Range This is a portable digital inclinometer with LCD display. Easy to operate and use, great for accurate angle measurements. It can be used in interior decoration, construction area, plumbing, floors & stairs, woodwork and other industries. Features: Aluminum alloy shell, strong durability and long service life. Absolute & relative measurement interchange at any position. LCD display with backlight for easy reading of measurement data.  The measuring data can be flipped, more convenient to read. Built-in magnets in measuring surface, it will conveniently cling to the metal measuring workpiece for easy measurement. 4*90° measuring range, 0.05° resolution and ±0.2° accuracy. Automatic power off in 3 minutes when not in use for saving power and extending battery life. Powered by 2 * AAA batteries(not included), easy to install and use. Portable size, convenient to co-work with other measuring tools and enlarge measuring range. It can be used in interior decoration, construction area, plumbing, floors & stairs, woodwork and other industries. Specifications: Material: aluminum alloy Measuring range: 4 x 90° Resolution: 0.05° Accuracy: ±0.2° Repeatability: ±0.1° Battery: 2 * AAA batteries (Not included) Working temperature: 0~50℃ Working humidity: ≤85% Item size: approx. 57 * 55 * 27mm / 2.24 * 2.17 * 1.06in  Package size: approx. 85 * 70 * 45mm / 3.35 * 2.76 * 1.77in Package weight: approx. 100g / 3.53ounce Package List: 1 * Digital Inclinometer 1 * Small Screwdriver 1 * Small Bag 1 * User Manual(English)