Bestman BF-560 mother good helper Fetal Doppler baby doppler, portable fetal doppler 

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, can be changed into 3.0MHz, 5.0MHz, 8.0MHz orives easily;

1.5V batteries be chosen by alkaline battery or rechargeable batteries..

Specifications:
Executive Standard:EN61266:1995

Ultrasonic frequency:2.0 MHz(Standard) 3.0MHz/5.0MHz/8.0MHz(Optional),error: ± 10% 

Ultrasonic power intensity:≤10mW/cm2

Comprehensive Sensitivity: ≥90dB

Measurement range: 50bpm–210 bpm Error: ±2bpm

Isptp:≤0.1Mpa

Doppler Frequency: 0-3KHz

Power Consumption:≤1.5W

Power off automatically:after 3 minutes

Working Mode:Continuous ultrasound doppler

Working temperature: 5-40°C  

Humidity:< 80%  

Atmospheric pressure:86-106kPa

Power Supply:  Size 5 alkalescence battery(1.5V x3) (alkalescence battery isn't rechargeable)

Normative collocation:Main Unit, 2.0MHz Probe, 3.0pieces of 1.5V size 5  alkaline battery, gallus, service manual, maintenance manual and certificate.

Optional collocation: 3.0MHz/5.0MHz/8.0MHz probe, size 5 Ni-MH rechargeable battery( 1.2V * 3), charger, earphone, mini small sound box, ultrasound gel.