Digital Microscope Calibration Certificate Z540 Traceable without Data Connectivity USB Cable Eyepiece Protractor No Illumination Type LED Includes Calibration Rule (Graduation 0.1 mm) Focus Support Software CD Magnification 10X to 200X Overall Depth 300 mm Overall Height 220 mm Overall Width 150 mm Power Source Corded Resolution 1600x1200 Software Software Included Table Length 1/4 in Table Width 5/16 in Voltage 0.1 V Weight 2 kg X-Axis Table Travel 0 in