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The Masimo 4481 is a 4-foot rainbow RC patient cable that connects Masimo Rainbow sensors to compatible monitors — including Rad-57, LIFEPAK 15 (rainbow SET), rainbow-enabled Masimo devices. Built for daily clinical and EMS use.
Product Highlights
4 ft length
Rainbow (20-pin) connector — mates with Rainbow sensor family
Pairs with Rad-57, LIFEPAK 15 (rainbow SET), rainbow-enabled Masimo devices
Strain-relieved, overmolded connectors for field use
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 sensors work with the Masimo 4481?
Any Masimo Rainbow sensor works with this cable. Rainbow cables are also backward-compatible with M-LNCS SpO2 sensors.
Which monitors support this cable?
Rad-57, LIFEPAK 15 (rainbow SET), rainbow-enabled Masimo devices, plus other devices with Masimo SET or rainbow SET technology and the matching connector.
What's the difference between M-LNC and rainbow cables?
M-LNC cables are 14-pin and SpO2-only. Rainbow RC cables are 20-pin and support SpO2 plus rainbow parameters (SpCO, SpMet). Rainbow cables accept both rainbow sensors and M-LNCS SpO2 sensors.
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.
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Masimo 4481 20-Pin, 4 ft M-LNCS/Rainbow EMS Patient Cable Made With Kevlar
