| 934 | Single Lead Over-the-counter Electrocardiograph | Electrocardiograph. |
| 934 | Single Lead Over-the-counter Electrocardiograph | Electrocardiograph. |
| Single Lead Over-The-Counter Electrocardiograph [33227] | 21 CFR §870.2340 🔎 |
| Single Lead Over-The-Counter Electrocardiograph [31353] | 21 CFR §870.2340 🔎 |