Transparent HiRes™ plastic finger goniometer permits observation of joint's axis of motion, and its range of motion.
The HiRes™ design ads a white line behind measurement gradations to make the readings easy to see.
The head has three scales ranging from 30°hyperextensions through 120° flexion calibrated to be used with the ISOM (International Standards of Measurement, STFR) system.
Arm has a linear scale in inches and centimeters and remains at measurement position until reset.
Angle scale reads 1° increments.