Ультразвуковой фетальный допплер для мониторинга сердечного ритма дома Sonar беременность детский звук B метр USB-перезаряжаемый без радиации 3,0 МГц on.

Ультразвуковой фетальный допплер для мониторинга сердечного ритма дома Sonar беременность детский звук B метр USB-перезаряжаемый без радиации 3 0 МГц on.

Specifications:

Display: LCD 45mmx36mm

Measuring range: 50~210 BPM

    Accuracy: ±2bpm

    Resolution: 1bpm

Sound working frequency: 3.0MHz

Comprehensive sensitivity: at a distance of 200mm from the probe surface, the comprehensive sensitivity is not less than 90dB

Peak negative sound pressure: < 1MPa

Output beam sound intensity: < 20mW/cm⊃2;

The average derived sound intensity of spatial peak time: < 100mW/cm⊃2;

Ultrasonic output power: < 20mW

Speakers: The volume is adjustable

Headphone mouth: ∮3.5mm

Power: built-in 1000mAh Li-battery (rechargeable),USB charging

Shipping package:1*Fetal Doppler Heartbeat  Monitor ,1*English Manual,1*USB cable

How To Use:

*Before using it, confirm that the device has power.

*Press the button to turn on, and then adjust the volume.

*Lie on a pillow cushion and keep your legs straight and relaxed

*Attach the fetal probe to the abdomen to adjust the position of the fetus to find the best fetal heart direction

*After hearing the regular fetal heart sound, the FHR value will be displayed on the screen in real time

*Please contact us for help in timeif you can not use it well yet.