1. Portable Fetal Doppler mainly applies to detect the fetal heartbeat rate from the twelfth week.
2. Built-in rechargeable battery can work continuously more than 6 hours,LED can display FHR.
3. Alarm function when FHR is out of the normal range or battery power is in shortage.
4. Automatic power off ( 3 minutes )
5. Built-in speaker and collocated with earphone jack.
6. 2.0MHz probe,Optional 5.0MHz probe for blood stream.
1. Executive Standard: EN61266: 1995
2. Ultrasonic frequency: 2.0MHz±10%
3. Ultrasonic intensity: ≤10mW/cm2
4. Comprehensive Sensitivity: ≥90dB
5. FHR range: 60-210bpm(±2bpm)
6. FHR alarm range: ≤100bpm or ≥170bpm
7. Isptp: ≤0.1MPa
8. Battery: 14.4V/1600mAh Ni-MH rechargeable batteries
9. Adapter input voltage: AC 110V±10% 60Hz / 220V±10% 50Hz
10. Rechargeable battery input voltage（no load）: DC 24V±1V
11. Maximum audio output intensity: ≤2W
12. Doppler frequency: 100--3000Hz
13. Static continuous working time: ≥6h
14. Working temperature: 10-40℃
15. Humidity: ≤80%
16. Atmospheric pressure: 86--106kPa