Purpose: Allows expectant parents to hear the fetus's heartbeat at home.
Operation: Uses a transducer probe (often requires ultrasound gel or water for, a clear signal).
Digital Screen: Displays numerical FHR (Fetal Heart Rate) readout, with common readings around
.
Specifications: Often includes a, built-in speaker, headphone jack, and simple on/off operation.
Usage: Best used after 16 weeks of gestation.