Sonotrax doppler (without probe) includes carry case
                            Inexpensive doppler from Sonotrax. Suitable for 8 MHz vascular and/or 2 MHz fetal probes
  
  - Large LCD display with backlight
- Battery indicator
- High quality speaker
- Shows heart rate 
- Headphone jack
- Works up to 4 continuous hours
- Automatically switches off
- Includes carry case
 
 Available with various waterproof probes
8MHz (vascular)