Features:
High sensitivity probe, no radiation, low-ultrasound power, safety and with high accuracy.
Large LED display, you can see the fetal heart rate, battery capacity, and volumes clearly.
Equipped with volumes adjustable function, you can adjust the volumes easily according to your demands.
the external speaker of the device will be closed, without any sound output.
After hearing a recognizable, rhythmic fetal heart rate sound, keep the probe stationary for at least 5 seconds so that the device can measure and display the fetal heart rate correctly.
Powered by two sections of AA battery, support continuous operation. (battery is included)
Note:
The normal fetal heart rate r-ange is 120-160bpm.
100-120bpm and 160-180bpm are critical intervals, which should be paid attention to.
Specifications:
Name: Fetal Doppler Monitor
Material: ABS
Color: white
Battery: 2 * AA battery (included)
Ultrasonic-operating frequency: 3.0MHz
The deviation between the ultrasonic-working frequency and the nominal ultrasonic-working frequency: should not be more than ±15%
Overall sensitivity: 290dB (At a distance of 200mm from the probe surface, the comprehensive sensitivity)
Fetal heart rate measurement and display-range: should not be less than 65-210BPM
The speed of sound: 1520- 1620m/s
Acoustic impedance: 1.5- 1.7 x 106 Pa.s/m
Acoustic attenuation : < 0.05dB/(cm.MHz)
Working environment:
Temperature: 5°C-40℃
Relative humidity : 25-80% RH
Atmospheric pressure: 70kPa-106kPa2
Storage and transportation:
Temperature: 5℃-45℃
Relative humidity: 9-85% RH
Atmospheric pressure: 50kPa-106kPa
Viscosity: >15Pa. S
PH value: 5.5-8
Service altitude <2000m
Package weight: 160g / 5.64ounce
Packing List:
1 * Fetal Doppler
Note: This product does not give a coupling agent. It is recommended to use aloe vera gel. Can't work on ultrasound gel)
