Fetal doppler BF-500D+

pocketwith heart rate monitor

1. Pocket Fetal Doppler mainly applies to detect the fetal heartbeat rate since the twelfth week of pregnancy; 2. LCD can display FHR, synchronous FHR signal, battery indicator, volume of sound and alarm indicator accurately; 3. Built-in rechargeable battery can work continuously more than 5 hours; 4. Blue backlight LCD display for use conveniently at night; 5. Automatic power off ( one minute), self-detect function, and alarm function when FHR is out of the normal range or battery power is in shortage; 6. Only 270g, can be carried conveniently with a gallus; 7. Built-in speaker and collocated with earphone jack; Specification 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 ≥160bpm 7. Isptp: ≤0.1MPa 8. Battery: 9V dry battery (optional for 8.4VNi-MH rechargeable batteries and charger) 9. Maximum audio output intensity: ≤1W 10. Doppler frequency: 100--3000Hz 11. Static continuous working time: ≥2h 12. Automatic Dormancy time limit:1 minute 13. Working temperature: 10-40℃ 14. Humidity: ≤80% 15. Atmospheric pressure: 86--106kPa