HT-6510A for soft rubber, leather ect HT-6510D for hard rubber, plastic products ect Measurement range:0-100HA(HD) HT-6510A for soft rubber, leather ectHT-6510D for hard rubber, plastic products ectApplication: Shore A is designed to measure the penetration hardness of rubber, elastomers and other rubber like substances such as neoprene, silicone, and vinyl. It can also be used for soft plastics, felt, leather and similar materials.Shore D is designed for plastics, Formica, Epoxies and Plexiglass.Product info: digital durometer for shore hardness testing pocket size model with integrated probeTest scale: shore hardnessStandards: DIN53505, ASTMD2240, ISO7619, JISK7215Parameters displayed: hardness result, average value, max. valueMeasurement range:0-100HA(HD) Measurement deviation:<1%HResolution: 0.1Auto switch off With RS232C interface Operating conditions: 0°C to 40°C Power supply: 4x1.5V AAA (UM-4) battery Battery indicator: low battery indicator Dimensions: 162x65x38mmWeight (not including probe):173g