SD3 Series Ultrasonic Pocket Doppler User Manual Doppler and Accessories
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For SD3 LITE without OLED, the LED is shown as follows:
Probe off and low capacity
2.2.3 Buttons
There is a push button (REC/PLAY), a volume control button and a power button on the main
unit of the Doppler. Their primary functions are as follows:
(1) REC/PLAY
(Only for SD3 PRO)
Function: Start/ stop recording or playing fetal heart sound.
(2) Volume Control Indicator
Function: Adjust volume. Rotate the volume gear toward “+” to turn up the volume, while
rotate it toward “-” to turn down the volume.
(3) Power
Function: Power the Doppler on or off.
2.2.4 Socket
The two sockets are located on the side panel of the Doppler.
(1) Earphone socket : (SD3 LITE, SD3, SD3 PLUS, SD3 VASCULAR) for outputting
audio signals, the earphone or line-in cable connects to the Doppler via this socket.
Audio output : (SD3 PRO) for outputting audio signals.