ABS Plastic enclosure (light weight and durable) Relative/absolute measurement interchange at any position Angle and slope readout conversion With built-in magnets in measuring surface, which is convenient to be attached to the object measuring workpiece Auto power off Portable size ,convenient to co-work with other measuring tools and enlarge measuring range (Material): plastic (Color: )Black (Application): Widely used in of angle level measurement. (Battery): 2pcs 3V CR2032 button battery (shipment without battery) (Specification): length size: 100-150-200mm, Angle range: 4x90 degrees (resolution): 0.1 (accuracy error): plus or minus 0.3 The bottom measuring surface is magnetic. Functions: Absolute angle measurement Relative angle measurement Upright display "On/off" button "UNIT" buttons : 4 units of measure : degree , % slope , mm/m , in/ft "ZERO" button "HOLD" button Application: Drainage angles and run-off slopes Grader and tractor work alignment Setting blade angle of Circular Saws Tool setting on Lathes Setting blade angle of Miter Saws Check drill press table setting, table saw, jointer table, band saw jointer fence or band saw table Platform monitoring Package Contents: 1 x inclinometer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.