White backlight LCD can display FHR for darkness use: show the probe working frequency, battery capacity, Doppler signal and alarm indicator; user friendly interface makes easy operation;
Output jack can be connected to instruments. ( headset )
Sound amplified and recorded function;
Clear sound with a high quality loudspeaker;
2.0MHz probe is standard probe for fetal doppler
Option: 3.0MHz, 5.0MHz, 8.0MHz for fetal, umbilical blood flow and vascular doppler.
1.5V batteries be chosen by alkaline battery