The Sonic 1000S/1200S Series offers the Highest Ultrasonic resolution of any lightweight portable. It's innovative design features an uncluttered keypad, and Smartknob, making it extremely simple and intuitive to train on and to operate. PowerLink technology provides automatic sensor recognition and simplified set up. Another feature is the inclusion of the first customer-interchangeable displays. This flexible display provides optimum screen intensity in any lighting condition, EL (electroluminescent) for low light and (liquid crystal) for bright or outdoor lighting. The instruments weigh less than 6 lbs., and can be run on AC or your choice of D-cell or nickle-metal hydride batteries. Windows-based software - FlawMaster - for storage and transfer of data is available.