The digital protractor is more precise and often easier to use than old-school models with bubble vials.2.2” digital level's versatility and accuracy make it a must-have tool. Strong Stable Magnetized Base---The bevel gauge with V-Groove strong magnetized base allowing you attach the cube directly to any ferrous metal surface, even a curved surface. Easy to Read---Digital level has upgraded LCD screen, the measured values displayed are clearer and brighter, even in the dark does not affect reading. Two Measurement Modes---Absolute angle mode and relative measurement mode, press the "ZERO" button to achieve relative/absolute measurement interchange at any position, could not be easier.This sturdy mini tool also functions as an inclinometer, protractor, and a level and bevel gauge. Portable & Lightweight---eOUTIL digital inclinometer has portable size, it's convenient to carry and co-work with other measuring tools and enlarge measuring range. It is compact and very much affordable.