GE Corometrics 128 fetal monitor

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GE Corometrics 128 fetal monitor Features

Offering every monitoring need for both the mother and fetus, the Corometrics 128 is a hospital-grade twin fetal monitor. The GE Corometrics Series Maternal and Fetal Monitors help clinicians manage labor, delivery, and recovery for their patients. Includes Fetal HR for twins, Fetal ECG, Uterus Activity, Fetal SpO2 (optional), Maternal BP, Maternal SpO2, 3 ea Serial Interface.

Be prepared with a monitor that can help you manage the entire process – even in the most difficult cases.

  • smart bp feature
  • delays auto-determination during contractions
  • vital signs history feature saves maternal information in memory for quick review or print summary
  • recovery mode sets the recorder to standby allowing delivery to print only the vital signs and save paper
  • keyboard option for detailed annotations
  • software utility upgrade program to install future feature enhancements
  • song player serenades both mother and family to celebrate the new arrival
  • interface with 340 telemetry for ambulatory monitoring and hydrotherapy when used with the Nautilus watertight transducers
  • interface capability with the oxifirst® fetal pulse oximetry system
  • interface capability with QS information systems

Corometrics 120 Series Specifications


  • Height: 6.7”, 17 cm
  • Width: 16.4”, 41.9 cm
  • Depth: 17.3”, 43.9 cm
  • Weight: 24 lbs (10.9 kg) approximate

Ultrasound Mode

  • Technique: pulse Doppler with autocorrelation processing
  • Transducer type: 9-crystal
  • Pulse reception frequency: 4 kHz single ultrasound mode, 2 kHz dual ultrasound mode
  • Pulse duration: 92 µs
  • Transmitter frequency: 1.151 MHz
  • Intensity: <5mW/cm²
  • Heart rate counting range: 50-210 BPM
  • Leakage current: <10 µA at 120-240 VAC, isolated by transducer


  • Technique: peak detecting, beat-to-beat cardio tachometer
  • Heart rate counting range: 30-240 BPM
  • Heart rate resolution: ±1BPM
  • Artifact elimination: switch selectable, ±25 BPM artifact rejection
  • Countable input signal range: 15 µV to 2mV peak-to-peak
  • Offset voltage tolerance (differential): ±300 mVDC maximum
  • Maximum common mode voltage: 20V peak-to-peak
  • Preamplifier bandwidth: 1-100 Hz
  • Common mode rejection: balanced > 120 dB at mains frequency, with patient cable, unbalanced = 5 kO RA or LA: > 110 dB at mains frequency
  • Input equivalent noise: < 10µV peak-to-peak
  • Input impedance: differential > 10 MO, common mode > 20MO
  • Mains frequency rejection: > 40 dB
  • Leakage current: < 60µA at 254 VAC, electrically isolated. Isolation, mains-to-patient: > 4 kVAC
  • Leg plate tester jack: simulated r-wave at 120 ± 1 BPM

Fetal Alarms

  • (for ultrasound or FECG modes) Audio: alternating 1.5-second chimes (773 Hz and 523 Hz)
  • Visual: flashing heart rate numeric
  • Limits: User-selectable high and low fetal heart rate
  • Technical: signal quality
  • Tachycardia response time: 5 minutes at 100% limit violation
  • Bradycardia response time: 30 seconds at 100% limit violation
  • Signal quality response time: 100% signal loss – 1.25 minutes, 70% signal loss – 5 minutes, 65% signal loss – 10 minutes

Fetal Pulse Oximeter Mode

  • Technique: spectrophotometry and plethysmography
  • Saturation range: 10-100%
  • Saturation accuracy: reproducibility is one standard deviation = 4.7%. Nominally, 67 of the measurements across the population will be within ± standard deviation
  • Wavelengths: red: 735 µM, nominal; infrared: 890µM, nominal
  • Response time: user-selectable: slow and fast averaging modes
  • Transmitter frequency: 1.151 mHz

Uterine Activity Mode

  • Range: 0-100 mmHg strain gauge, 0-100 relative units toco transducer
  • Resolution: 1 mmHg stain gauge, 1 relative unit toco transducer
  • Bandwidth: DC to 0.5 Hz strain gauge and toco transducer
  • Excitation voltage: strain gauge +4.0 VDC

Maternal BP Mode

  • Technique: oscillometric. Blood pressure range: 20-255 mmHg (2.7 – 34 kPa)
  • Pulse rate range: 40-240 BPM
  • Blood pressure accuracy: ±5 mmHg with a standard deviation no greater than 8 mmHg
  • Pulse rate accuracy: ±2 BPM or ± 2% , whichever is greater
  • Display/record: systolic, diastolic, and mean pressure; pulse rate

Maternal Pulse Oximeter Mode

  • Saturation range: 0-100%
  • Pulse rate range: 30-250 BPM
  • Saturation accuracy: %SpO2 ± 1 SD: 70-100% ±2 digits, 50-69% ± 3 digits. 0-49% unspecified
  • Pulse rate accuracy: ±3BPM


  • Leads: II, III, and I
  • Heart rate counting range: 30-240 BPM
  • Heart rate resolution: ± BPM
  • Heart rate averaging: 1 sec
  • Maximum common mode voltage: 20 Vp-p
  • Preamplifier bandwidth: 0.6 to 40 Hz
  • Common mode rejection: balanced > 80 dB at mains frequency, with patient cable; unbalanced 5 k RA or LA > 50 dB at mains frequency
  • Input impedance: differential > 2.5 MO; common mode > 10 MO
  • Mains frequency rejection: >40 dB
  • Leakage current: < 60 µA at 254 VAC, with cable, electrically isolated
  • Alarms: Audio: alternating 1.5 seconds chimes, Visual: flashing heart rate numeric or message, Limits: user-selectable high and low maternal heart rate, technical: leads off

Power Requirements

  • Line voltage: 100/120/220/230/240 VAC
  • Line frequency: 50/60 Hz
  • Power consumption: 100W/0.4 A maximum

Refurbished GE Corometrics 128 Series Fetal Monitor

Soma Technology, Inc. offers Refurbished GE Corometrics 128 Fetal Monitor System up to 50% below OEM prices with the same service and warranty as new. The GE Corometrics 128 Fetal Monitor is not only technically refurbished but also cosmetically refurbished to make it work and look like new. When the refurbishing process starts the GE Corometrics is carefully inspected and tested by our own in-house biomedical engineers who are highly skilled and certified to work on the GE Corometrics 128 Fetal Monitor. If necessary, parts are replaced to make sure that all aspects of the pump are functioning properly. Once everything is in working order, the unit is calibrated back to the original engineering manufacturer’s specifications. This ensures that the unit is working the same way that it originally left the manufacturer. After the GE system is working like new it undergoes a special cosmetic restoration process. The GE Corometrics 128 Fetal Monitor is cleaned, minor scratches and dents are repaired, it’s painted, and new decals are replaced if necessary. After this strenuous refurbishing process, the Unit functions and looks like new. Soma Technology is ISO 13485 certified and ensures that the best quality is given to all capital medical equipment that they sell. Before the Ge Corometrics 128 is labeled patient-ready and packed up for shipment, it goes through one last quality control test that makes sure all aspects are again working as they should. If you are looking to buy a refurbished GE Corometrics System contact soma at [email protected] or call us at 1-800-GET-SOMA.

Soma Technology, Inc. is also actively looking to purchase a GE Corometrics 128 Fetal Monitor System. If you or your facility is looking to sell your GE Corometrics 128 Fetal Monitor, be sure to contact Soma Technology, Inc. Soma has a dedicated and experienced purchasing department that helps you through the entire process. Selling your used or pre-owned GE Corometrics 128 Fetal Monitor System to Soma Technology takes out the middle man in the equation. This also ensures that your medical facility gets top dollar for your equipment. Soma Technology is 100% HIPPA compliant and makes sure that your equipment gets to our facility in the same condition that it left yours. Soma Technology also gives the option for trade-in credit on your medical equipment. If you have medical equipment you would like to sell to Soma, send us a message here!


Questions about our Fetal Monitors?

Soma Tech Intl offers a wide range of fetal monitors. If you have any questions about any of our fetal monitors or need a quick quote, call us and one of our knowledgeable sales representatives will help you.

Looking to sell your fetal monitors? Soma ensures your facility gets top dollar for your equipment and also gives the option for trade-in credit.

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