Hardness Tester Scales A Measuring Range 10 to 90HA Resolution 0.1 HA Indenter Ball Work Surface Width (In.) 0.01 in Max Workpiece Height (In.) 6 13/32 in Digital Display Output Features Measure Hardness of Rubber Elastomers Natural Rubber Neoprene Polyester Resin Leather and PVC Pocket Sized with Integrated Probe Maximum and Average Functions Zero Adjustment Button Low Battery Indicator Auto Shut-Off Includes (2) Batteries Hard Carrying Case Test Block Wrist Strap