EDAN-SD3-Lite.02 SD3 Lite fetal doppler with built-in speaker and 2 MHz probe (1 EA)The Edan SD3 Lite. 02 is a compact and portable ultrasonic doppler designed for basic fetal heart rate detection. It features a built in speaker that provides clear audio output for clinical or home environments. This specific configuration includes a 2 MHz waterproof probe, which is optimized for deep penetration to locate fetal heartbeats in early pregnancy. SKU Product Key Technical Details EDAN SD3 Lite. 02 SD3 Lite Fetal Doppler (1 EA) 2 MHz