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 4 hours;

Blue backlight LCD display for use conveniently at night;

Automatic power off ( one minute), self-detect function, 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;

2.0 MHz probe and easy to replace, optional 5.0MHz probe for blood stream.

Specification:
Executive Standard: EN61266: 1995

Ultrasonic frequency: 2.0 MHz±10%

Ultrasonic intensity: ≤10mW/cm2

Comprehensive Sensitivity: ≥90dB

FHR range: 60--210bpm(±2bpm)

FHR alarm range: ≤100bpm or  ≥160bpm

Isptp: ≤0.1MPa

Battery: 9.6VNi-MH rechargeable batteries

Adapter input voltage: AC 110V±10% 60Hz / 220V±10% 50Hz

Rechargeable battery input voltage（no load）: DC 12V±1V

Maximum audio output intensity: ≤0.5W

Doppler frequency: 100--3000Hz

Static continuous working time: ≥4h

Automatic Dormancy time limit:1 minute

Working temperature: 10-40℃

Humidity: ≤80%　 

Atmospheric pressure: 86--106kPa