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The Corometrics 171 Fetal Monitor (Single Fetus) includes new standard 5700 series ultrasound/toco transducers and power cord.


  • Certified Refurbished: 90 Days - Parts and Labor.
  • Factory New: 1 Year - Parts and Labor.

The 171 Model is an antepartum, single ultrasound for reliable non-stress testing. It is compact and lightweight in design, while maintaining high quality fetal monitoring features ideally suited for office, clinic, home, and hospital settings.

Indications for Use: The monitoring of the fetus during the antepartum period as well as throughout labor and delivery.

Corometrics 171 Fetal Monitor Features

  • Large LED Display: Allows easy, at-a-glance confirmation of fetal heart rate and uterine activity.
  • Telemetry Interface: Promotes ambulatory monitoring and surveillance; when used with Nautilus watertight transducers, it also promotes hydrotherapy.
  • 9-Crystal Pulsed Doppler Ultrasound: Provides a wide-beam profile for high-quality fetal heart rate detection.
  • Nautilus Toco: Provides external uterine activity information with an easy-to-use, easy-to-clean, comfortable transducer.
  • High/Low Heart Rate Alarm: Notifies clinician when high or low fetal heart rates exceed the user-specified limits.
  • Remote Event Marker Interface: Annotates fetal movements perceived by the mother.
  • Standard Z-Fold Paper: Easy-to-load and simplifies storage of traces and events.
  • Unique Fetal Acoustic Stimulator: Interfaces with the monitor to automatically annotate the strip when generating a vibro-acoustic pulse during an NST.
  • Two standard RS232 interfaces for CIS and NIBP.
  • Allows ambulatory monitoring with the Corometrics 340 Telemetry interface.

Corometrics 171 Fetal Monitor Specifications

  • Technique: Pulsed doppler with auto correlation processing.
  • Transducer Type: Loop.
  • Pulse Repetition: 2 kHz (all modes).
  • Frequency Pulse Duration: 92 μs.
  • Transmitter Frequency: 1.151 MHz.
  • Spatial-Average Temporal Isata: Less than 5 mW/cm2.
  • Focal: 20 dB Beam Area 16.6 cm2, at a range = 7 cm.
  • Peak Instantaneous: 1.8 mW/cm2.
  • Heart Rate Counting Range: 50 - 210 BPM.
  • Leakage: Current complies with IEC 60 1.1 and/or IEC 601.1.1 harmonized national standard; Complies with EN 60601-1-2:2002.

Corometrics 171 Fetal Monitor Configurations

  • #MFI-GEH-171: Certified Refurbished.
  • #2091059-001-501484: Factory New - Nautilus US (Loop).
  • #2091059-001-502985: Factory New - Nautilus US (Button).
  • #2091059-001-819323: Factory New - Nautilus US (Button and Loop).
  • #2091059-001-501483: Factory New - FMD and Nautilus US (Loop).
  • #2091059-001-501971: Factory New - FMD and Nautilus US (Button).

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