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This is a quality fetal heart rate detection instrument that uses Doppler principle to obtain fetal heart rate from the pregnant woman's abdomen, and presents fetal heart rate data through voice monitoring, digital display and other ways. You can use it to hear fetal heart sound and calculate FHR to achieve pre-monitoring and fetus caring.
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.
Insert the 3.5mm 32 mono or dual channel headphone plug into the headphone jack of the device, you can use the headphone to listen to fetal heart sound, at the same time, 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 not 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.
Name: Fetus-voice Meter
Material: ABS
Color: white
Battery: 2 * AA battery (not included)
Earphone: 3.5mm 32 Mono -or dual-channel headphones
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
1 x User Manual
Digital Display #C
Features:
Handheld and Practical: It's designed for pregnant women to check FHR daily. The pregnant women can operate by themselves, hear the fetal heart sound, and calculate FHR to achieve the purpose of pre-monitoring the fetal heart rate.
Accurate Measurement: The use of autocorrelation algorithm can effectively eliminate the interference caused by the external environment, suppress the noise in the echo signal, improve the response speed, and ensure accurate measurement results.
High-Sensitivity Probe: The wide-beam and probe with high-sensitivity can ensure reliable measurement values throughout pregnancy.
Intelligent Noise Reduction: The use of digital filter noise reduction technology can greatly reduce the noise of the instrument, and the output heart sound will be clearer.
LCD Display: The large LCD screen makes the reading clearer, convenient and worry-free.
Specifications:
FHR Measurement Range: 50-210BPM (BPM: heart beats per minute.)
Working Frequency: 2.125-2.875MHz
Peak Intensity at Empty Peak: <21.7kPa
Ultrasonic Output Intensity: <10mW
Working Temperature: 5-40℃/41-104℉
Working Humidity: 15-85%
Atmospheric Pressure: 86-106kPa
Comprehensive Sensitivity: ≤90dB
Accuracy: +/- 2 BPM
Speaker Power: 0.5W
Power Supply: 2 x AA Batteries (Included)
LCD Screen Size: 1.8in
Notes:
Please allow a slight dimension difference due to different manual measurements.
Due to the light and screen setting difference, the item's color may be slightly different from the pictures.
Package Contents:
1 x Prenatal Heart Rate Monitor
1 x User Manual
only. If buyer want to delay the payment because of financial problem, please contact me by the ebay message within 3 days
