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Ultrasonic Heartbeat Detector Monitor Home Pregnancy Pregnant Fetal Heartbeat Doppler Product Name Fetal Doppler Ultrasound frequency 3.0MHz Sensitivity 16 weeks gestation RH 0%~93% Temperature -20%~+55%℃ Atmos...
Household Fetal Heart Rate Monitor Doppler Fetal Movement Maternal Fetal Heart Rate Monitor Product Description: Fetal Doppler is used for detect the Fetal Heart Rate ( FHR ) to hear the sound of 12 weeks pregn...