---
kind: "section"
citation: "21 C.F.R. § 870.2860"
title: "21"
number: "870.2860"
heading: "Heart sound transducer."
url: "https://uscodex.org/cfr/21/870.2860"
---

# §870.2860. Heart sound transducer.

- (a) **Identification.** A heart sound transducer is an external transducer that exhibits a change in mechanical or electrical properties in relation to sounds produced by the heart. This device may be used in conjunction with a phonocardiograph to record heart sounds.
- (b) **Classification.** Class II (performance standards).

## Notes

### Authority

Authority: 21 U.S.C. 351, 360, 360c, 360e, 360j, 360 l, 371.

### Source

Source: 45 FR 7907, Feb. 5, 1980, unless otherwise noted.