Section 888.1520 - Nonpowered goniometer(a)Identification. A nonpowered goniometer is a mechanical device intended for medical purposes to measure the range of motion of joints.(b)Classification. Class I (general controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter, subject to the limitations in § 888.9 .52 FR 33702, Sept. 4, 1987, as amended at 66 FR 38815 , July 25, 2001