HIGH PRECISION & FOUR UNITS: 0.1 at 0~90, 0.2 at other angles with 0.05 resolution. It is designed with a wide measuring range of 4*90 (0~360). There are four measurement unit selections, degree (), percentage (%), mm/m, in/ft, which can meet various working needs. This digital angle inclinometer is useful for woodworking, construction, machinery, telecommunications, automotive, etc. EASY TO READ BACKLIT LCD DISPLAY: The angle indicator Digital Angle features a large backlit LCD display, which provides accurate, fast and clear measurements. Measurements can be easily read even in a dark environment. The backlight can be turned on and off freely. The display also reverses automatically when the tool is upside down. Moreover, this digital level tool will automatically shut off after 5 minutes of inactivity to save power. V-GROOVE & EASY MARKING MAGNETIC BASE: With its strong magnetic base in V-groove, this digital angle gauge easily and securely attaches to miter saw, band saw, table saw blades, metal studs and round tubing. It can be used on fences, tables, etc. Thanks to its powerful magnet, the tool is posed without concern. The left and right slots are convenient for marking when measuring. HOLD & ZERO FUNCTION: The current measurement value can be held on the screen by short pressing the HOLD switch. The zero function allows users to establish a relative zero angle to any reference surface. The built-in level bubble bottle on the top is designed for battery-free leveling work. PORTABLE & PACKAGE CONTENTS: With its mini size, this digital angle level can be placed in tight spaces to get the perfect measurements needed Conveniently designed and a portable bag, this rugged precision tool can be taken anywhere. Users can easily install the battery with the included screwdriver. Package contents include 2 AAA batteries, screwdriver, carrying case with belt clip and user manual.