CFR › Title 21 › Part 882 › §882.184521 CFR §882.1845Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Identification. A physiological signal conditioner is a device such as an integrator or differentiator used to modify physiological signals for recording and processing.(b)Classification. Class II (performance standards).