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.

 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
 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
 Interchangeable waterproof probes, alkaline battery
SD3
 Interchangeable waterproof probes, OLED display, alkaline battery
SD3 PLUS
 Interchangeable waterproof probes, OLED display, built-in rechargeable battery
SD3 PRO
 Interchangeable waterproof probes, OLED display, audio recorder, built-in rechargeable battery