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Check out this reusable forehead spo2 probe from Masimo. Compatible with RD Set technology.

Masimo 4055 RD SET Reusable SpO2 Forehead Sensor

SKU: MAS-4055

Masimo Corporation

The Masimo 4055 is a transflectance forehead SpO2 sensor for adult (>30 kg) monitoring in low-perfusion or motion-rich environments where finger sensors may struggle. Built on Masimo SET® Measure-through Motion and Low Perfusion™ technology.

Product Highlights

  • Parameters: SpO2
  • Patient size: Adult (>30 kg)
  • Cable length: 3ft
  • Packaging: 1/box
  • Authentic Masimo OEM — full manufacturer warranty

Parameters Measured

SpO2

Specifications & Compatibility

Part Number 4055
Parameters SpO2
Patient Size Adult (>30 kg)
Cable Length 3ft
Packaging 1/box
Manufacturer Masimo Corporation
Compatible Patient Cables 2523 M-LNC 1 ft Patient Cable 2524 M-LNC 4 ft Patient Cable 2525 M-LNC 10 ft Patient Cable 2526 M-LNC 14 ft Patient Cable

Who Uses This

Ground & Flight EMSRuggedized for ambulance bags and rotor-wing transport. Standard on paramedic and critical-care transport rigs.
Fire-Based EMSFast setup for first-arriving engines and squad units. Works in strobe-light and sunlight conditions typical of scene work.
Hospital & EDSpot-check and continuous monitoring in emergency departments, ICUs, and procedural areas.
Dental, Clinic & Urgent CareConscious sedation monitoring, pre-op assessment, and general oxygenation checks for outpatient practices.

Frequently Asked Questions

What is the Masimo 4055?
It is a genuine Masimo OEM product — transflectance forehead SpO2 sensor. Pacific Biomedical stocks authentic Masimo product with full manufacturer warranty.
Is this compatible with my Masimo monitor?
Masimo product families (LNCS, M-LNCS, Rainbow, RD SET) are not cross-compatible without adapters. Confirm your monitor's connector type before ordering; our team at CustomerService@pacificbiomedical.com can help you verify compatibility.
Are these genuine Masimo products?
Yes. Pacific Biomedical stocks authentic Masimo OEM product. All items ship new in original Masimo packaging with full manufacturer warranty.
How quickly does this ship?
Most in-stock items ship within 1–2 business days from our warehouse. Expedited and overnight options are available at checkout.
How do I place an order or request a quote?
Email CustomerService@pacificbiomedical.com or call us at (844) 436-3526. We support net terms for agencies and hospitals, and we ship to all 50 states.
Item # In Stock Price Quantity

Masimo 4055 RD SET Reusable SpO2 Forehead Sensor

MAS-4055

 Check out this reusable forehead spo2 probe from Masimo. Compatible with RD Set technology.

$180.00

ea

4 items left

Item # Description In Stock Quantity

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