What Is the Compatible Masimo 2505 M-LNCS YI Multi-Site Sensor?

The Masimo 2505 (M-LNCS YI) compatible SpO2 sensor (IPR SKU SS-007RB-MY10) is a reusable multi-site Y sensor for Masimo SET-equipped devices that use the M-LNCS 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 emitter and detector sit on separate flexible leads that split from a single cable in a “Y,” so they can be positioned on opposite sides of a foot, hand, finger, or toe. That makes one sensor usable across patient sizes from neonates to adults. The 3.3 ft (1.0 m) cable ends in an M-LNCS connector, which attaches to the monitor through an M-LNCS-compatible patient cable such as a Masimo rainbow RC-series or M-LNC cable. Note that M-LNCS and standard LNCS connectors are not interchangeable without an adapter.

Compatible Monitor Models

This compatible sensor works with Biolight BLT A6, BLT A8, M8500, Q3, Q6, and Q7 monitors and the Masimo Radius-7. On devices with a 20-pin Masimo Red or rainbow port, the sensor connects through an M-LNCS patient cable. Confirm your device’s SpO2 interface and patient cable before ordering.

Design and Construction

The Y design separates the emitter and detector onto two small, flexible heads, so they can be aligned directly across from each other on sites a clip cannot reach, such as a neonate’s foot or palm, an infant’s great toe, or an adult finger. The heads are secured with a wrap suited to the patient and site, following your facility’s application protocol. Because one reusable sensor covers neonatal, pediatric, and adult patients, it simplifies stocking on mixed-acuity units and in transport bags. The 3.3 ft (1.0 m) cable terminates in an M-LNCS connector. The sensor is reusable and supplied as one set per bag.

When to Replace Your 2505 M-LNCS YI SpO2 Sensor

The thin leads on a Y sensor are the part most exposed to wear, especially where they split from the main cable. Replace the sensor when either lead is cut, kinked, or pulling away at the split, the emitter or detector face is cracked, scratched, or discolored, the M-LNCS connector is cracked or damaged, or the cable jacket shows cuts. Persistent “sensor off” alarms, low signal quality on a properly applied sensor, 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 2505 (M-LNCS YI), and to the OEM-labeled equivalents sold under other monitor brands, including Comen 040-000361-00, Draeger MP02984, and GE Healthcare 2068423-065.

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. Compatible reusable SpO2 sensors give NICUs, pediatric units, EMS agencies, and materials managers a cost-effective way to keep Masimo SET-equipped monitors in service without paying OEM pricing. We also stock compatible M-LNCS patient cables, so you can source the sensor and cable together. Our team can confirm fit against your device before you order, and we also offer in-house repair services, replacement parts, and refurbished equipment.

IPR Medical buys, sells, repairs, and stocks parts for the Masimo 2505 M-LNCS YI 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, LNCS, 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.