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: 10-40º C
Humidity: ≤ 80%
Atmospheric pressure: 86--106kPa