The Edan SD3-Plus.02 Handheld Fetal Doppler offers precise acoustic clarity for prenatal heart rate evaluations. Outfitted with a bright, high-contrast OLED display screen and a built-in speaker assembly, this lightweight diagnostic system tracks real-time fetal heart tones while filtering out underlying maternal tissue artifacts. The included 2 MHz waterproof transducer probe provides optimized lower-frequency wave depth, protecting monitoring accuracy and allowing medical teams to reliably locate the fetal heartbeat during late-term gestational checks on high-BMI patients.