LCD display, and with EL backlight;
Display modes: Numerical Display of FHR (Fetal Heart Rate);
2.0 MHz supersonic working frequency with a lower noise and better sound;
1.0 & 2.5 MHz Doppler probe replaceable & optional;
With alarm function, and the alarm limits can be set;
Built-in speaker and audio output
Data record can be uploaded to PC
Automatic power off
3 AA alkaline or rechargeable batteries or AC/DC adapter (optional)