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