Philips Avalon FM20 Fetal Monitor

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Philips Avalon FM20 Features

The Philips Avalon FM 20 is a fetal monitor that offers both fetal and maternal monitoring at the same time. This monitors the maternal blood pressure and pulse rate and can monitor multiple fetal heart rates which include up to triplets. The Avalon FM Series
is a Compact Fetal monitor with three-channel ultrasound tracing, fetal movement, direct fetal heart rate, TOCO, and intrauterine pressure. The fetal monitor comes standard with a touchscreen monitor that is easy to use.

The Philips Avalon FM20 and FM 30 are both a part of the Avalon Cordless Transducer System (CTS), making it easy for the mother to move freely while still being monitored.

  • NST Trace Interpretation to improve efficiency
  • Variety of readings for comprehensive understanding
  • Triplet monitoring option expands capabilities
  • Reliability features allow uninterrupted operation
  • A large, intuitive color display clearly shows the status
  • Smart Pulse for automated coincidence detection

Philips Avalon FM20 Specifications


  • M2702A/M2703A<?li>
    • Height: 5.2 in (133 mm)
    • Width: 11.3 in (286 mm)
    • Depth: 13.2 in in (335 mm)
    • Weight: 11.2 lbs (5.1 kg)
  • M2704A/M2705A
    • Height: 6.8 in (172 mm)
    • Width: 16.5 in (420 mm)
    • Depth: 14.6 in (370 mm)
    • Weight: 19.8 lbs ( <9.0 kg)


  • Monitor Screen: 6.5 in / 16.51 cm
  • Touchscreen Operation: Optional


  • Operating Time: up to 4 hours

Monitor Operating Environmental Conditions

  • Temperature Range: 0°C to 45°C (32°F to 113°F)
  • Humidity Rage: <95% relative humidity @ 40°C/104°F
  • Altitude Range:-500 to 3000 m/-1640 to 9840 ft.

Monitor Storage Environmental Conditions

  • Temperature Range: -20°C to 60°C (-4°F to 140°F)
  • Humidity Range: <90% relative humidity @ 60°C/140°F
  • Altitude Range: -500 to 13100 m/-1640 to 43000 ft.

Transducer Operating Environmental Conditions

  • Temperature Range: 0°C to 40°C (32°F to 104°F)
  • Humidity Range: <95% relative humidity @ 40°C/104°F
  • Altitude Range: -500 to 3000 m/-1640 to 9840 ft.

Transducer Storage Environmental Conditions

  • Temperature Range: -20°C to 60°C (-4°F to 140°F)
  • Humidity Range: <90% relative humidity @ 60°C/140°F
  • Altitude Range: -500 to 13100 m/-1640 to 43000 ft.

SpO2 Environmental Conditions

  • Operating Temperature Range 0°C to 37°C (32°F to 98.6°F)

Fetal / Maternal Ultrasound

  • Measurement Method: Ultrasound Pulsed Doppler
  • Measurement Range: US 50 to 240 bpm
  • Display Resolution: 1 bpm
  • Printer Resolution: 1/4 bpm
  • Jitter @ 200 bpm: = 3 bpm
  • Display Update Rate: 1/ Second
  • Average output power P = (4.3 ± 0.4) mW
  • Peak-negative acoustic pressure p_ = (33.9 ± 3.6) kPa
  • Output beam intensity (Iob) (= spatial average – temporal average intensity) Isata = (2.38 ± 0.75) mW/cm<?li>
  • Spatial-peak temporal average intensity I spta = (10.3 ± 2.2) mW/cm2
  • Effective radiating area @ -6 dB 1.81 cm2
  • Beat to Beat Change (max.) for Ultrasound 28 bpm
  • Frequency: 1 MHz ± 100 Hz
  • Signal Range: 3.5 µVpp to 350 µVpp @ 200 Hz


  • DECG: Single Lead ECG (derived from Fetal Scalp Electrode)
  • MECG: Single Lead ECG (derived from RA and LA electrodes)
  • Measurement Range: 30 to 240 bpm
  • Display Resolution: 1 bpm
  • Recorder Resolution: 1/4 bpm
  • Accuracy: ± 1 bpm or 1%, whichever is greater
  • Beat to Beat Change (max.) 28 bpm
  • Differential Input Impedance > 15MO
  • Electrode Offset Potential Tolerance ± 400 mV
  • Filter Bandwidth 0.8 to 80 Hz
  • Inop Auxiliary Current (Leads Off Detection) < 100 µA
  • Input Signal Range DECG: 20 µVpp to 6 mVpp
  • 20 µVpp to 6 mVpp MECG: 150 µVpp to 6 mVpp
  • Dielectric Strength 1500 Vrms
  • Defibrillator Protection None
  • ESU Protection None

Non-invasive blood pressure

  • Measurement Ranges:
    • Systolic 30 to 270 mmHg (4 to 36 kPa)
    • Diastolic 10 to 245 mmHg (1.5 to 32 kPa)
    • Mean 20 to 255 mmHg (2.5 to 34 kPa)
  • Accuracy:
    • Max. Std. Deviation: 8 mmHg (1.1 kPa)
    • Max. Mean Error: ±5 mmHg (±0.7 kPa)
  • Pulse Rate Range Accuracy:
    • 40 to 300 bpm
    • 40 to 100 bpm: ±5 bpm
    • 101 to 200 bpm: ±5% of reading
    • 201 to 300 bpm: ±10% of reading
  • Measurement Time:
    • Typical at HR > 60bpm
    • Auto/manual: 30 seconds (adult)
    • Maximum time: 180 seconds (adult)
  • Cuff Inflation Time Typical for normal adult cuff: Less than 10 seconds
  • Initial Cuff Inflation Pressure 165 ±15 mmHg
  • Auto Mode Repetition Times 1, 2, 2.5, 3, 5, 10, 15, 20, 30, 45, 60 or 120 minutes


  • External fetal parameters: US/Toco
  • Twin capability: Standard
  • Triplets capability: Optional
  • Internal fetal parameters: N/A
  • Maternal parameters: MECG, NIBP, Pulse
  • Smart Pulse technology: Standard
  • Cross-channel verification: Standard
  • Fetal movement profile: Standard


  • NST trace interpretation (optional): Up to three Fetal Heart Rates (FHR)

Variety of Readings

  • This antepartum and intrapartum monitor provides a wide range of readings. These include separate maternal pulse measurement; integrated monitoring of maternal pulse rate and blood pressure; external monitoring of fetal heart rates, uterine activity, and fetal movement; and an extensive set of internal fetal parameters such as direct fetal heart rate and uterine pressure. Maternal SpO2 monitoring is included as standard.

Smart Pulse

  • Smart Pulse provides cross-channel verification. It continuously compares all fetal and maternal heart rates to enhance confidence that each is measured separately.

NST Trace Interpretation

  • Built-in NST Trace Interpretation, a clinical decision support (CDS) application for antepartum monitoring, can help to improve efficiency by sorting out the traces that require closer analysis by the obstetrician.

Refurbished Philips Avalon FM 20/30 Fetal Monitor

Soma Tech Intl. offers a Refurbished Philips Avalon FM Fetal Monitor System up to 50% below OEM prices with the same service and warranty as new. The Philips Avalon FM 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 Fetal Monitor is carefully inspected and tested by our own in-house biomedical engineers who are highly skilled and certified to work on Avalon FM. 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 Philips Avalon FM Fetal Monitor System is working like new it undergoes a special cosmetic restoration process. The 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 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 Philips Avalon FM Fetal Monitor 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 Philips Avalon FM Fetal Monitor contact soma at [email protected] or call us at 1-800-GET-SOMA.

Soma Tech Intl. is also actively looking to purchase a Philips Avalon FM Fetal Monitor System. If you or your facility is looking to sell your Philips Avalon FM Fetal Monitor, be sure to contact Soma Tech Intl. Soma has a dedicated and experienced purchasing department that helps you through the entire process. Selling your used or pre-owned Philips Fetal Monitor to Soma Tech takes out the middle man in the equation. This also ensures that your medical facility gets top dollar for your equipment. Soma Tech is 100% HIPPA compliant and makes sure that your equipment gets to our facility in the same condition that it left yours. Soma Tech Intl 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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