This Doppler comes with a 3 MHz probe. The 3mhz probe has the strongest frequency allowing users to easily find a fetal heart beat. It will work very well through most full term pregnancies.
Why 3 MHz probes work best for fetal heart detection?
Over 90% of OBs, hospitals, and midwives choose 3 MHz probe because they know from the results of millions of exams that 3 MHz works better. It works better because the fetus is so small early in gestation that 3 MHz reflects the ultrasound back to the sensor better than the lower frequency 2 MHz. A 3 MHz has also been proven to work well throughout the pregnancy.
Ultrasound probe: solid and durable, anti-shock, anti-falling down
Ultrasound frequency: 3 MHz ±3%
Ultrasound intensity: ﹤2.5mW/cm2
Power: AC 110V 60Hz,Built in 9.6V nickel-hydrogen rechargeable batteries
Weight: Main body 0.25kg
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