Many of our fetal doppler models are compatible with various probe types and frequencies

	Probe	Details
Later Pregnancy (12+ Weeks Gestation)		2.0 MHz Probe is designed for laterpregnancies. Not applicable for all pregnancies.
Entire/Early Pregnancy (8–10 Weeks Gestation)		3.0 MHz Probe is most the common probe for most pregnancies. Over 90% of OBs, hospitals, and midwives choose 3 MHz probes for better results.
Non-Pregnancy		4.0 MHz Probe is NOT designed for pregnancy applications. This is a Vascular Probe used to locate pulse in the wrist, elbow, etc.
Non-Pregnancy		8.0 MHz Probe is NOT designed for pregnancy applications. This is a Vascular Probe used to locate pulse in the wrist, elbow, etc.