-Extra large LCD; Backlight, easy for reading in darkness place
-Beeper will sound at 0º、10º 、20º、30º、40º、50º、 60º、 70º、80º、90º
-Measuring data holding
-Display always read upright, no matter which the level is turned
-Degree and slope conversion
-Auto power off; low battery warning
-No special tools and instruments are needed for recalibration, easy for operation
-3 in 1 for protractor, dopmeter and level
-Measuring range: 4x90º
-Resolution: 0.1º
-Battery Type: 3V CR2032X3
-Working Temperature: 0ºC-40ºC
-Relative Humidity: 40%-80%
-Dimension: 6"x2"x1.3"