HIGH PRECISIONFOUR UNITS: 0.1at 0~90, 0.2at other angles with a resolution of 0.05. It is designed with a wide measuring range of 4*90 (0~360). There are four selections of measurement units, degree ()percentage (%), mm/m,in/ft, which can meet various working needs. This digital angle inclinometer is practical for carpentry, construction, machinery, telecommunications, automobile, etc. EASY-TO-READ BACKLIT LCD DISPLAY: The digital angle gauge has 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 will also be reversed automatically when the tool is upside down. Additionally, this digital level tool will automatically turn off after 5 minutes of inactivity to save power. EASY MARKING GROOVE MAGNET BASE: With its strong magnetic V-groove base, this digital angle gauge easily and firmly attaches to miter saw, band saw, table saw blades, metal studs and round pipes. It can be used on fences, tables etc. Thanks to its powerful magnet, the tool can be placed and measurements taken without worry. The grooves on the left and right are convenient for marking when measuring. HOLDZERO FUNCTION: The current measurement value can be held on the display by briefly pressing the HOLD switch. The zero function allows users to set a relative zero angle on any reference surface. The built-in level bubble bottle on top is designed for battery-free leveling work. PORTABLEPACKAGE CONTENTS: With a mini size, this digital angle level can place in tight spaces to get the perfect and necessary measurements. Convenient design and a portable pouch, this sturdy precision tool can be taken to anywhere. Users can install the battery easily with the included screwdriver.