The UltraTec PD1dwr is a small, lightweight, high sensitivity pocket Doppler with built in fetal heart rate processing. The 2MHz fetal Doppler probe is sealed for immersion in water and ideal for use by a General Practitioner or Midwife for routine antenatal fetal detection or waterbirth FHR monitoring. The fetal heart rate is displayed on a large LCD display with the audio signal available to the user via the built in loudspeaker or optional headset with output level controlled by rotary volume control. FHR traces are available by connection of the serial output to the optional UltraTrace 2 PC compatible software.