U3-02 Baby Portable Digital Heart Monitor Home Use
u9-03 Portable Recargable Buy Pocket Fetal Doppler Price Ultrasound Baby Heartbeat Monitor for Pregnancy
| Product model | U9-03 |
| Working voltage | 3.0V |
| Sound operating frequency | 2.5MHz±10% |
| Bluetooth transmission distance | |
| Overall sensitivity | ≥90dB |
| Detection range | 60 - 210bpm |
| Product size | |
| Weight | 110g |
