Probe for fetal detector DOPPLERSON-B

Portable fetal detector probe SONOLINE B.

SONDAB-2: Probe 2 MHz to hear the heartbeat of the fetus.
SONDAB-4: 4 MHz vascular probe (WARNING: not used to hear the fetal heartbeat).
SONDAB-8: 8 MHz Probe for use vascular surface. (WARNING: not used to hear the fetal heartbeat).