1、360 degree measure range
2、Display always read
   upright, no matter which
   way the level is turned
3、Extruded aluminum frame
4、Simple calibration
   requiring no special
   fixtures
5、Versatile measuring tool
   ,angle finder.protractor.
   lever three in one.
6、3V lithium battery 2000
   hours in continous use

Range：   4¡Á～360¡ã Work temperature：
                +5℃～+40℃
Work humidity：    ≤85％RH Resolution：           0.1¡ã Accuracy：  0¡ã1644;90¡ã804;0.1¡ã              the rest≤0.2¡ã Power：  CR2032 3V lithium
                   battery