UDT-20WD is a fetal Doppler, designed for water assisted labor and general purpose. It is ideal for use by General Practitioner or Midwife for routine antenatal fetal detection.


  • Waterproof probe
  • Since 10 weeks of pregnancy
  • Continuous wave: 2MHz
  • Reduction of initial contact noise
  • Continuous and auto-volume control
  • Volume memorize function at unit activation
  • Fetal heart rate: 50-210bpm
  • Fetal heart beat indicator
  • An audio output (on demand) can be connected with earphone or audio recorder
  • Highly resistant to interference from mobile phones
  • It uses standard 2xAA batteries
  • Battery indicator and low battery shut off
  • Auto shut off: 10 min in use/3 min no signal
  • Optional rechargeable batteries 2xAA NiMH and charger
  • Battery life: 32 hours