SD3 Lite Ultrasonic Pocket DopplerThe SD3 Ultrasonic Pocket Doppler provides exceptional performance at anexcellent value. Boasting superb sensitivity, complete interchangeability, and highdurability, the SD3 series is the ideal choice for routine fetal heart rate detection. Designed for auscultation (intermittent listening) of fetal sound, the SD3 comeswith 2 MHz or 3 MHz waterproof probes suitable for detecting fetal heart rate. The unit can also be equipped with 4 MHz, 5 MHz, or 8
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