StacksVerified U.S. regulatory reference

21 CFR §870.2300

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Identification. A cardiac monitor (including cardiotachometer and rate alarm) is a device used to measure the heart rate from an analog signal produced by an electrocardiograph, vectorcardiograph, or blood pressure monitor. This device may sound an alarm when the heart rate falls outside preset upper and lower limits.
  2. (b)Classification. Class II (performance standards).