What Is the Compatible Masimo 4050 RD SET DCI SpO2 Sensor?

The Masimo 4050 (RD SET DCI) compatible SpO2 sensor (IPR SKU SS-165RB-AF10) is a reusable adult finger clip sensor for Masimo SET-equipped monitors that use the RD SET sensor interface. It is a compatible aftermarket replacement, not an OEM Masimo product, built to match the fit, form, and function of the original. The 3.3 ft (1.0 m) cable ends in an RD SET connector, which attaches to the monitor through an RD SET patient cable. RD SET is Masimo’s newer sensor platform, used on current-generation Mindray monitors such as the ePM and cPM series, and it is not interchangeable with LNCS or M-LNCS connectors without an adapter.

Compatible Monitor Models

This compatible sensor works with Masimo SET-equipped Mindray monitors including the Accutorr 3, Accutorr 7, cPM 8, cPM 12, ePM 10M, and ePM 12M, as well as the Digicare LifeWindow 9X, LifeWindow Lite LW8, and LifeWindow One. Confirm that your device is configured for Masimo RD SET oximetry and that you have the correct RD SET patient cable before ordering.

Design and Construction

The sensor uses a hard shell finger clip with a spring hinge that holds the emitter and detector in consistent alignment across the fingertip, making it well suited for spot checks and short-term continuous monitoring. It is sized for adult patients weighing more than 66 lbs (30 kg). The 3.3 ft (1.0 m) cable terminates in a Masimo RD SET connector. The sensor is reusable and supplied one per bag.

When to Replace Your 4050 RD SET DCI SpO2 Sensor

Finger clip sensors take a lot of handling, and wear shows up first at the hinge, the finger pads, and the connector. Replace the sensor when the clip no longer closes firmly, the finger pads are torn or hardened, the emitter or detector windows are scratched or discolored, the RD SET connector is cracked or damaged, or the cable jacket shows cuts or kinks. Persistent “sensor off” alarms, low perfusion warnings on well-perfused patients, or readings that drop out when the cable is moved also point to a failing sensor. If a sensor fails to read on a monitor that passes self-test, try a known-good sensor and patient cable to isolate the fault quickly.

Cross Reference and Interchange Part Numbers

This compatible sensor cross-references to Masimo 4050 (RD SET DCI), and to the OEM-labeled equivalents sold under other monitor brands, including Draeger MS33740, GE Healthcare MASIMO-RD-4050, Mindray 040-003376-00, Physio-Control 11996-000456, and Zoll 8000-001814.

Why Source Masimo-Compatible SpO2 Sensors from IPR Medical?

IPR Medical is an ISO 9001:2015-certified independent service organization that buys, sells, repairs, and stocks parts for infusion pumps and patient monitoring equipment. As facilities move to current-generation monitors with Masimo RD SET technology, compatible reusable sensors give biomedical departments and materials managers a cost-effective way to stock them without paying OEM pricing. Our team can confirm fit against your monitor model and RD SET patient cable before you order, and we also offer in-house repair services, replacement parts, and refurbished equipment, so you can source accessories and service from a single partner.

IPR Medical buys, sells, repairs, and stocks parts for the Masimo 4050 RD SET DCI SpO2 Sensor. 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.