Smedley Type Hand Dynamometer CPM Units Accessories U 20 PORTABLE ULTRASOUND * The Select Ear:Left Ear U 20 PORTABLE ULTRASOUND * The U 20 Portable Ultrasound provides therapeutic ultrasound in an economical package * Soundhead Features and Options All Amrex ultrasound transducers are lightweight ergonomically designed and sealed for underwater therapy * Amrex offers two soundhead faceplate sizes: the standard 2 Micro Fit™ Can't Hardly See It Accurate repeatable and durable * Custom twisted spring can easily withstand accidental dropping without affecting accuracy * 4 centimeters of infinite handle adjustment for the most comfortable fit * Testing range on dual scale is 0 to 220 pounds * Unit comes complete with carrying case and norms (age 5 to adult) *