QM Height w/o Air Floating, Inch/Metric 0-14", 0,00005"/0,0001"/0,0002", 518-241This is a high precision ABSOLUTE Digital Height Gauge that offers you the following benefits: It has a high accuracy, high resolution ABSOLUTE linear encoder for position detection. Types with and without pneumatic drive mechanism. Automatic running of prelearnt part programs. You can easily implement frequently used measurements, such as inside outside diameter and pitch calculations, by icon based commands that also support easy one key operation.