U3-02 Baby Portable Digital Heart Monitor Home Use
U7 China Factory Handheld Home Use Easy Baby Heart Rate Detector Fetal Doppler Monitor Doppler Foetal
| Product model | U7 |
| Working voltage | 3.7V |
| Sound operating frequency | 2.5MHz±10% |
| Bluetooth transmission distance | |
| Overall sensitivity | ≥90dB |
| Detection range | 60 - 210bpm |
| Product size | |
| Weight | 132g |
