Specification
| item | Value |
| Type | Portable Ultrasonic Diagnostic Devices |
| Product name | Fetal Doppler |
| Display range | 50bpm~210bpm |
| Error | ±2bpm |
| Peak negative sound pressure | <0.1MPa |
| ISPTA | <100mW/cm2 |
| Lob | <10mW/cm2 |
| Ultrasound output power | <20MW |
| Ultrasound operating frequency | 3.0MHz |
| Size | 53.5X28.6X36 cm |