... interface for both recharging and data transfer to PC Portable hardness tester Features:* Pocket size, easy to operate* Based on the ... display with back lightDisplay functions DImpact direction, Battery power consumption, Hardness scale, Hardness value,Average value, Max/Min value, Material, Type of ... , C, DC, D+15, DL, G * Special support rings Portable hardness tester Portable hardness tester