What Is the YSI 401 Compatible Adult General Temperature Probe?

The IPR Medical TS-Y400-AG30 is a compatible aftermarket (not OEM) adult general (oral/rectal) temperature probe that replaces the YSI 401. It pairs a 0.16 in (4.0 mm) probe tip with a 9.8 ft (3.0 m) cable and uses 400 Series temperature technology. Because it is reusable, the same probe can go back into service once it has been cleaned between patients.

Compatible Monitor Models

The list of compatible equipment for this probe spans many manufacturers. On that list are select Nihon Kohden models (the BSM-2301 and BSM-6501, for example), select Edan models including the iM60 and M50, and select Criticare / CSI models like the 507E and 8100. Select Welch Allyn models such as the Propaq CS and Propaq Encore, and select Zoll models, also appear; every remaining entry is in the Compatible Monitor Models table on the Specifications tab, where you should confirm your exact model before ordering.

Design and Construction

For adult general (oral/rectal) use, the TS-Y400-AG30 combines a 0.16 in (4.0 mm) tip, 400 Series temperature technology, and 9.8 ft (3.0 m) of cable. Each probe ships in an individual bag and is intended for repeated use. Clean and disinfect the probe between patients as your facility protocol requires, and look over the tip and cable before each use.

When to Replace Your YSI 401 Compatible Temperature Probe

Take the probe out of service if readings wander, take noticeably longer than usual to stabilize, or stop agreeing with a reference thermometer. A cracked or loose tip, a nicked or split cable jacket, and visible damage at the monitor connector are other clear reasons to replace it. When a known-good probe reads normally on the same monitor, the original probe is almost certainly the cause.

Cross Reference and Interchange Part Numbers

Beyond the YSI 401, this probe cross-references to OEM numbers including Nihon Kohden YSI-401 and TT-411T, Welch Allyn 008-0230-00 and 9293-056-50, Zoll 8000-0668, and GE Healthcare / Marquette 9445-004. Look under Cross Reference / Interchange Part Numbers on the Specifications tab for the remaining numbers, arranged by brand.

Why Source Temperature Probes from IPR Medical?

Reusable oral/rectal probes wear with routine handling and cleaning. IPR Medical repairs patient monitors and infusion pumps in-house, and the same ISO 9001:2015-certified independent service organization buys, sells, and stocks the parts that equipment needs. Browse our temperature probes and cables or call 855-477-8866 with any questions.

IPR Medical buys, sells, repairs, and stocks parts for adult temperature probes and the patient monitors they connect to. 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 YSI, Philips, Nellcor, or any other manufacturer or supplier named on this page. YSI, Philips, Nellcor, OxiMax, Tempus Pro, 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.