What Is the Siemens/Draeger 5204644 Compatible Temperature Probe?

The Siemens/Draeger 5204644 compatible temperature probe is a reusable, aftermarket general-purpose probe for continuous oral or rectal temperature monitoring in adult patients. The probe tip senses core temperature and sends a resistance signal back to the monitor, which converts it to a displayed reading in °F or °C. It is a compatible replacement, not an original Siemens or Draeger part, and it is built to the same fit, form, and function as the OEM 5204644 probe.

Compatible Monitor Models

This compatible probe is confirmed for use with the Draeger Infinity Delta, Infinity Gamma, Infinity Kappa, and Infinity Vista patient monitors, which share the keyed round 7-pin temperature input. It is also listed for use with the Contec MS400 patient simulator, which is useful for biomedical technicians verifying temperature channel performance during preventive maintenance. The probe uses the Siemens/Draeger dual-thermistor 2R x 8.98K configuration, so it is not interchangeable with YSI 400 or YSI 700 series probes made for other monitor brands.

Design and Construction

The probe has a smooth 0.16 in (4.0 mm) tip suited to oral or rectal placement in adults. Inside, a dual-thermistor 2R x 8.98K sensing element matches the input characteristics the Draeger and Siemens monitors expect, for accurate readings. A 9.8 ft (3.0 m) gray cable gives enough reach from bedside monitors without an extension, and the round 7-pin connector is keyed so it seats only in the correct orientation. The probe is latex-free, non-sterile, reusable after cleaning and disinfection according to facility protocol, weighs about 0.3 lbs, and ships one per bag.

When to Replace Your Draeger Temperature Probe

Reusable temperature probes wear out from repeated cleaning, flexing at the connector and tip, and routine handling. Replace the probe when temperature readings drift, jump, or disagree with a reference thermometer, when the monitor shows “probe off” or out-of-range messages with the probe placed correctly, or when you find cracks or discoloration at the tip, a damaged or kinked cable jacket, or bent or corroded connector pins. Checking a suspect probe against a temperature simulator or a known-good probe is a quick way to confirm the fault.

Cross Reference and Interchange Part Numbers

This compatible adult general-purpose temperature probe, IPR Medical SKU TS-DG-AG30, cross-references to Siemens/Draeger part number 5204644, to Draeger part number 4329889, and to Unimed part number TSM-AG. Materials managers and purchasing staff can use any of these numbers to confirm the match against existing inventory, work orders, or requisitions. Contact IPR Medical if you are replacing a part number not listed here or need a skin or pediatric temperature probe for the same monitors.

Why Source Temperature Probes from IPR Medical?

IPR Medical is an ISO 9001:2015-certified independent service organization that buys, sells, repairs, and stocks parts for patient monitoring and infusion equipment. Our compatible probes, cables, and sensors give biomedical departments an affordable alternative to OEM accessories while matching OEM fit and function. This matters especially for legacy Draeger Infinity fleets, where OEM probes can be costly or hard to source. Our team can help confirm the right probe for your monitors and support your equipment with in-house repair services.

IPR Medical buys, sells, repairs, and stocks parts for the Draeger Infinity Delta, Infinity Vista, and Infinity Kappa monitors. 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 Draeger, Siemens, or any other manufacturer or supplier named on this page. Draeger, Siemens, 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.