Fetal Doppler BF-500D+ ( TFT )

Features:
Pocket Fetal Doppler mainly applies to detect the fetal heartbeat rate from the twelfth week;
LCD can display FHR, synchronous FHR signal, battery indicator, volume of sound and alarm indicator accurately;
Built-in rechargeable battery can work continuously more than 5 hours;
TFT LCD display for use conveniently at night;
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;
Only 270g, can be carried conveniently with a gallus;
Built-in speaker and collocated with earphone jack;
2.0MHz probe.
Specifications:
Executive Standard: EN61266:1995
Ultrasonic frequency: 2.0MHz±10%
Ultrasonic intensity: ≤10mW/cm2
Comprehensive Sensitivity: ≥90dB
FHR range: 60--210bpm(±2bpm)
FHR alarm range: ≤100bpm or ≥160bpm
Isptp: ≤0.1MPa
Battery: 9V dry battery (optional for 9VNi-MH rechargeable batteries and charger)
Maximum audio output intensity: ≤1W
Doppler frequency: 100--3000Hz
Static continuous working time: ≥2h
Automatic Dormancy time limit:1 minute
Working temperature: 10-40℃
Humidity: ≤80%
Atmospheric pressure: 86--106kPa