Section 882.1560 - Skin potential measurement device(a)Identification. A skin potential measurement device is a general diagnostic device used to measure skin voltage by means of surface skin electrodes.(b)Classification. Class II (special controls). The device is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 882.9 .44 FR 51730, Sept. 4, 1979, as amended at 84 FR 71815 , Dec. 30, 2019