Features:
Portable Fetal Doppler mainly applies to detect the fetal heartbeat rate from the twelfth week;

Built-in rechargeable battery can work continuously more than 4 hours;

LCD can clearly display FHR data, hear rate graphics, battery indicator, volume of sound and synchronous FHR signal;

Store and hold FHR data and graphics for up to 12 hours (for option);

Built-in printer with high precision can print synchronous FHR graphics clearly;

Alarm function when FHR is out of the normal range or battery power is in shortage;

Probes with high sensitivity can detect FHR and umbilical blood steam and much easier to interchange;

2.0MHz probe and 5.0MHz probe, 1.0MHzand 8.0MHzfor option;

RS-232 port can connect the unit with a computer and store the data.

Specifications:
Executive Standard: EN61266: 1995

Ultrasonic frequency: 2.0MHz/5.0MHz±10%

Ultrasonic intensity: ≤10mW/cm2

Comprehensive Sensitivity: ≥90dB

FHR range: 60--210bpm(±2bpm)

FHR alarm range: 60--210bpm adjustable

Isptp; ≤0.1MPa

Print speed: 1,2,3 cm/min

Battery: 14.4V/1600mAh Ni-MH rechargeable batteries

Adapter input voltage: AC 100--240V 50Hz/60Hz

Rechargeable battery input voltage（no load）:DC 24V±1V

Input power: ≤30W

Maximum audio output intensity:≤2W

Doppler frequency: 100--3000Hz

Static continuous working time: ≥4h

Automatic power off: one minute

Working temperature: 10-40℃

Humidity: ≤80%

Atmospheric pressure: 86--106kPa