Ultrasonic Pocket Doppler SD3

With excellent sensitivity, complete interchangeability and high durability, SD3 series Ultrasonic Pocket Doppler are ideal for routine fetal heart rate detection by the clinicians. Moreover, the versatile, compact and portable SD3 Vascular Doppler is ideal for clinicians to do quick vascular detection.



  • Plug-and-play
  • Compact design with easy one-hand operation
  • Bright OLED screen with real-time FHR display
  • 2 MHz probe with deep penetration for later pregnancy and larger patients
  • 3 MHz probe detects fetal heart beat as early as 9 weeks
  • 4/5/8MHz probe for blood flow detection
  • Automatic power-off while putting the probe back to the rack (SD3 PLUS & SD3 PRO)
  • Real-time monitoring for daily use
  • Record & play with audio playback and numeric display
  • Normal AA batteries for easy replacements
  • Built-in Li-ion rechargeable battery ensures long working time
  • Unique charger stand design
SD3 Lite&Vascular
‘Interchangeable waterproof probes, alkaline battery
‘waterproof probes, OLED display, alkaline battery
SD3 Plus
‘Interchangeable waterproof probes, OLED display, built-in rechargeable battery
SD3 ProInterchangeable
‘waterproof probes, OLED display, audio recorder, built-in rechargeable battery