Features:
White backlight LCD can display FHR for darkness use: show the probe working frequency, battery capacity, doppler signal and alarm indicator; user frendly interface makes easy operation;

Output jack can be connect toinstruments . ( headset )

Sound amplified and recorded function;

Clear sound with a high quality loudspeaker;

2.0MHz probe is standard probe

1.5V batteries be chosen by alkaline batter ( Not include when shipping )

Specifications:
Executive Standard:EN61266:1995

Ultrasonic frequency:2.0 MHz(Standard),error: more or less 10%

Ultrasonic power intensity:less than 10mW/cm2

Comprehensive Sensitivity: more than 90dB

Measurement range: 50bpm–210 bpm Error: more than less2bpm

Isptp:≤0.1Mpa

Doppler Frequency: 0-3KHz

Power Consumption:less than 1.5W

Power off automatically:after 3 minutes

Working Mode:Continuous ultrasound doppler

Working temperature: 5-40centigrade 

Humidity:< 80%

Atmospheric pressure:86-106kPa

Packaging Detail:

1 x Main Unit ( Not Include Battery )

1 x Probe

1 x User Manuel