DOCBEL FD 200 Fetal Doppler for Baby Heart Rate Detection Monitoring Machine Portable with in-Built Speaker & Battery and Backlight Color Screen LCD Display (2 Year Warranty)

Docbel Fetal Doppler consists of probe (transmitter and receiver) and signal process unit. Ultrasonic wave is transmitted from one piezoelectric ceramic at the front of the probe to the uterus of the pregnant women. Echo is received by the other piezoelectric ceramic at the front of the probe when ultrasonic wave reaches the fatal heart. Then it is converted into voltage. This doppler signal is detected and demodulated from the received signal. And the doppler frequency is consistent with the rhythm of the fetal systole and diastole. Once cardiac valves vibrate and a doppler frequency excursion is formed. It is transmitted an output signal of cardiac valves vibrating, and it is sent to the loudspeaker for getting a rhythmical sound with the fetal heartbeat. Simultaneously, it is sent to a counter which calculate periods of heartbeat that is fetal heartbeat rate (bpm=beat per minute).
✅Listen to your unborn babies heartbeat in the comfort of your home
✅Peace of mind, reassurance and great joy to the mothers before child birth
✅Compact and portable design provides a convenient use and carrying backlight Color screen LCD displays the fetal heart rate and Adjustable Volume
✅Real Time Measuring Mode
✅Ultrasound frequency of 2.5Mhz, Ultrasound intensity: <20mW/cm2 Heart rate range: 50-210bpm
✅The acoustic coupling medium for normal use: ph: 5.5~8, Acoustic impedance: ≤1.7*105g /cm2s
✅Power ON/OFF button, Volume up down button, Recommended battery type: AA x 2 Alkaline Battery , Resolution: 1bpm , Output Power: 7.9mW, Continuous working time: >8hours
✅Clear Sound: Built-in speaker gives clear and loud sound in to your unborn child’s pulse easily and secretly at your own home. Audio output power: <0.5 W, Audio out Socket: Φ3.5mm
✅This fetal doppler is a hand-held obstetrical unit, which can be used in hospital, clinic and home for daily self-check
✅Ultrasound intensity: <20mW/cm2 Heart rate range: 50-210bpm

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