What Is the Masimo Compatible RD SET MD20-05 SpO2 Adapter Cable 4103?

The IPR Medical SA-009RB-15RD is a compatible aftermarket replacement for the Masimo 4103 (RD SET MD20-05) SpO2 adapter cable. It is not an OEM product. This 5 ft (1.5 m) reusable patient cable connects Masimo RD SET pulse oximetry sensors to monitors, handhelds, and defibrillators that have the red 20-pin Masimo rainbow SET patient cable connector. It is designed to match the original 4103 cable in fit, form, and function.

Compatible Monitor Models

This cable is compatible with the following Masimo monitors: Radical (20-pin), Radical-7, Rad-8, Rad-87, Rad-97, Rad-97 NIBP, Rad-97 with NomoLine Capnography, Rad-5, and Rad-5v. It also works with these Masimo handhelds: Rad-57, Rad-57c, Rad-57cm, Rad-57m, Pronto, Pronto-7, and Pronto with Next Generation SpHb. It is also compatible with the Physio-Control LIFEPAK 15, the Zoll X Series, and the Comen K12 Pro. Before ordering, confirm that your device has a red Masimo rainbow SET connector and uses RD SET sensors.

Design and Construction

The cable has a red 20-pin Masimo rainbow SET connector on the monitor end and an RD SET sensor connector on the patient end, joined by a flexible, shielded 5 ft (1.5 m) cable. The RD SET interface is a different connector from the LNCS, M-LNCS, and LNOP interfaces, so this cable will not accept those sensor families. The 5 ft length suits bedside, transport, and handheld use. It reaches the patient comfortably without the slack of longer cables. The cable is reusable and supplied one per bag.

When to Replace Your RD SET SpO2 Adapter Cable

Replace the cable if you see intermittent or dropped SpO2 readings, “sensor off,” “replace cable,” or “no cable” alarms with a known-good RD SET sensor attached, a cracked connector housing or bent pins on the red 20-pin end, or a cut, crushed, or kinked jacket. Masimo rainbow SET devices may also report cable faults directly on screen. Biomedical technicians can confirm a fault by swapping in a known-good cable. If readings return to normal, the cable should be retired. Keeping a spare on hand prevents downtime on crash carts, transport monitors, and spot-check stations.

Cross Reference and Interchange Part Numbers

The IPR Medical SA-009RB-15RD cross-references to Masimo 4103 (RD SET MD20-05), Draeger MS33738, and GE Healthcare MASIMO-RD-4103. This cable is for RD SET sensors only. If your facility uses standard LNCS sensors on a red rainbow SET port, choose the compatible Red LNC series cables: IPR Medical SKU SA-009RB-12LS, SA-009RB-30LS, or SA-009RB-36LS. If your facility uses M-LNCS sensors on a red rainbow SET port, choose the compatible RC-1 or RC-4 cables: IPR Medical SKU SA-009RB-03ML or SA-009RB-12ML.

Why Source SpO2 Adapter Cables from IPR Medical?

IPR Medical is an ISO 9001:2015 certified supplier of patient monitoring accessories, infusion pump parts, and medical equipment. Our team works with biomedical departments, materials managers, and clinical staff every day to find the right compatible cables and sensors quickly and at a fraction of OEM cost. Beyond accessories, IPR Medical buys, sells, and repairs patient monitoring equipment in-house, and stocks a deep inventory of replacement parts.

IPR Medical buys, sells, repairs, and stocks parts for Masimo rainbow SET pulse oximetry equipment. Contact us at 855-477-8866 or cs@iprmed.com.

Trademark Notice: This is a compatible aftermarket product. It is not manufactured, sold, licensed, or endorsed by Masimo, or any other manufacturer or supplier named on this page. Masimo, SET, and all other brand names, model names, and part numbers shown are trademarks of their respective owners and are used on this page only to identify the equipment this product is compatible with and the OEM parts it can replace, consistent with nominative fair use. IPR Medical is an ISO 9001:2015-certified independent service organization; references to OEM equipment describe the equipment we sell, service, and support, and do not indicate any affiliation with, sponsorship by, or endorsement from its manufacturer.