Main Function: On the basis of Leeb hardness measurement principle, can be used to detect a variety of metal materials, accurate measurement value stability Instantly showing the hardness measurement, and can be used in different formats conversion between hardness of freedom Can be configured to 8 different impact device, automatic identification device for impact type, replaced without the need to recalibrate Large screen LCD display, menu operation, information rich, intuitive High brightness LED backlight, convenient in the dark Low power consumption: Auto sleep, automatic shutdown function of saving energy Ordinary alkaline battery, standby time 150 hours