The MD II caliper is an electronic device, designed for efficient measurement and data collection of tree diameters, tree species and tree heights or log lengths. The collected data is communicated directly in the field with Bluetooth® and IR or in the office with USB. Icon-based menu system and easy-to-use standard software application. Memory capacity exceeding 10,000 registers and possibility to name up to 100 tree species. Built-in rechargeable, long-lasting batteries. Equipped with patented foldable jaws for easy transport and storage. Built tough and rugged inside and out.