Philips Avalon CL

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Pricing up to 50% below the cost of new,
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Philips Avalon CL Features

The Philips Avalon CL is a wireless fetal monitor system. With continuous monitoring during the antepartum period, labor, and delivery. The Avalon CL’s wireless transducers make it easier for the patient to move freely without sacrificing the essential monitoring of the baby. Reducing the stress wires can cause for both mother and baby. The cableless transducers can easily transmit fetal and maternal vital signs to a monitor at a base station in your medical facility. The Philips Avalon system can measure the fetal heart rate of twins and triplets along with maternal NIBP and SpO2. The Smart Pulse technology built into the Avalon adds safety measures for maternal parameters when using the Toco transducer. The system uses CCV to compare the heart rates of the mother and baby to reduce the risk of mistaking one of the heart rates when there may be multiple heart rates.

  • Can monitor multiple heart rates, twins, triplets, and mom.
  • Cabless, waterproof, and lightweight transducers.
  • Allows the expecting mother to be continuously monitored during bathings or ambulation.
  • On-demand audible patient calls from the fetal monitor.
  • Reliable fetal parameter signal quality with a line-of-sight operating
    range of up to 100 m/300 ft.
  • Automatic out-of-range notification for the patient.
  • User-friendly intuitive controls at the display of the connected fetal
  • High-capacity, rechargeable Lithium-Ion batteries, combine an
    operating time of more than 8 hours per charge cycle with a short
    recharge time of less than 3 hours.
  • Easy and quick assignment of transducers and CL Pods by simply
    docking them at the base station.
  • The base station connects to any fetal sensor socket on the Philips
    Avalon FM20, FM30, FM40, and FM50 fetal monitors, or to the rear
    telemetry connectors on the FM40 and FM50.

Philips Avalon CL Specifications


  • Height: 2.9 in (74 mm)
  • Width: 13.7 in (349 mm)
  • Depth: 7.2 in (183 mm)
  • Weight: 2.2 lb (0.985 kg)

Transducer Dimensions

  • Toco +MP:
    • Size (diameter/height): 2.9/1.4 in (75.5/36.6 mm)
    • Weight: 123 g ±10% (4.3 oz ±10%)
  • US Transducer:
    • Size (diameter/height): 2.9/1.4 in (75.5/36.6 mm)
    • Weight: 131 g ±10% (4.6 oz ±10%)

Transducer Battery

  • Type: integrated rechargeable li-ion battery with a battery gauge and cycle Counter
  • Runtime (fully Charged battery): min. eight hours
  • Life: > 500 charges/discharge cycles or older than 4 years
  • Transducer Storage Time: = 1 year at 25°C (77°F) (battery should be charged to 40% – 50% every six months)
  • Recharge Time: 100% charge = 3.0h
  • Recharging Time with an FM20/30: 100% charged > 6.0h

Environmental (Transducers and Base Station)

  • Operating temperature range: 0-45°C (32-113°F)
  • Operating transducer temperature: 0-40°C (32-113°F)
  • Storage transducer temperature: -20°C- +60°C (-4-140°F)
  • Operating humidity range: <95% relative humidity @ 45°C (113°F)
  • Storage humidity range: <95% relative humidity @ 60°C (140°CF)


  • Intensity:
      • Average output power: P = (12.4 ± 0.4) mW
      • Peak-negative acoustic pressure: P_= (49.1 ± 5.2) kPa
      • Output beam intensity(= spatial average – temporal average
        intensity): Isata= (2.77 ± 0.56) mW/cm2


    • Spatial-peak temporal average intensity: Isata=(21.1 ± 5.1) mW/cm2
    • Effective radiating area @ -12 dB: A-12 dB= (4.47 ± 0.89) cm2
  • beat-to-beat change (max. for Ultrasound: 28 bpm
  • US frequency: 1 MHz ± 100Hz
  • US signal range: 3.5µ Vpp to 350 µ Vpp @ 200 Hz
  • US burst repetition rate: 3.0 kHz
  • US burst duration: = 100 µs
  • FMP Signal Range@ 33Hz: 200 µµpp to 40 µVpp


  • Measurement Method: Strain Gauge Sensor Element
  • Sensitivity: 1 unit = 2.5 g
  • Measurement Range: 400 units
  • Signal Range: 0-127 units
  • Maximum offset range: -300 units
  • Baseline setting: 20 units
  • Auto Offset Connection: 3 seconds after connecting the transducer, the Toco value is set to 20 minutes
  • Auto Zero Adjust: Toco value is set to zero following a negative measurement value for 5 seconds

Maternal Pluse from Toco

  • Emitted light energy: = 15m W
  • Wavelength range: 780-1100nm
  • Range:40-240 bpm
  • Accuracy: ±2% or 1bpm, whichever is greater
  • Update rate: every 4 seconds

Refurbished Philips Avalon CL Fetal Monitor

Soma Tech Intl. offers a Refurbished Philips Avalon CL Fetal Monitor System up to 50% below OEM prices with the same service and warranty as new. The Philips Avalon 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 CL. If necessary, parts are replaced to make sure that all aspects of the pump are functioning correctly. Once everything is in working order, the unit is calibrated back to the original engineering manufacturer’s specifications. This ensures that the unit works the same way it originally left the manufacturer. After the 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 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 CL 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 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 ensures 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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