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Brand Name	OEM
Power Source	Electric
Material	Plastic
Quality Certification	ce
Product name	Fetal Doppler Monitor
Rated voltage	DC 3V
Battery type	two AA batteries
Fetal heart rate range	50BPM-230BPM
Ultrasonic frequency	3.0MHz
Fetal heart measurement accuracy	±2BPM (measurement error is less than 2)
Waterproof grade	IP5 dustproof and waterproof grade
Whole machine weight	about 171g (without battery)
Color	Pink, blue, green

The Baby's Heart Beat Fetal Pregnancy Ultrasound Rate Detection

home health instruments