What Is the M1673A Compatible 3-Lead ECG Leadwire?

The IPR Medical EL-PH3-90S-A is a compatible aftermarket (not OEM) 3-lead ECG leadwire that replaces OEM part M1673A. This reusable limb-lead leadwire connects to electrodes through snap ends, follows AHA color coding, and measures 3.0 ft (0.9 m). It is intended for monitoring, and its lead type is given in the Specifications table.

Compatible Monitor Models

Use this leadwire with the models shown in the Compatible Monitor Models table on the Specifications tab. That table spans many manufacturers and includes select Welch Allyn models (the 242 and Propaq Encore 206EL), select Biolight models such as the M8500 and Q Series, and select Ivy Biomedical models including the Cardiac Trigger Monitor 3150. Models from Bexen Cardio, Newtech, Nihon Kohden, PaceTech, Physio-Control, Solaris, and Spacelabs are listed as well, in each case for select models only. Check your exact model against the table before placing an order.

Design and Construction

The EL-PH3-90S-A has three leads for limb placement, each finished with a snap electrode end. Lead colors follow AHA coding: white for RA, black for LA, and red for LL. Construction details include shielding, a molded distal connector, and a 3.0 ft (0.9 m) length. As a reusable leadwire, it is cleaned between uses per facility protocol, and each unit is supplied in its own bag.

When to Replace Your 3-Lead ECG Leadwire

Look for snaps that are loose or no longer seat on the electrode stud, insulation that has split or become brittle, and connectors with bent pins or cracked housings. Signal problems matter too. If the monitor shows repeated lead-off alarms or a jittery, noisy ECG trace, or if the waveform changes when someone moves the leadwire, the leadwire is a likely culprit. Trying a leadwire known to be in good condition on the same monitor will help isolate the issue.

Cross Reference and Interchange Part Numbers

This leadwire is a compatible replacement for OEM part M1673A and also cross-references to OEM number 989803145111. You will find the complete set of interchange numbers in the Cross Reference / Interchange Part Numbers table on the Specifications tab.

Why Source ECG Leadwires from IPR Medical?

IPR Medical, an ISO 9001:2015-certified independent service organization, buys, sells, repairs, and stocks parts for patient monitors and infusion pumps. Our in-house repair team works on monitoring equipment every day, and we use that experience to help biomedical departments choose the right leadwires. Find more ECG cables and leadwires in our catalog, or call 855-477-8866 for help with orders, repairs, and parts.

IPR Medical buys, sells, repairs, and stocks parts for 3-lead ECG leadwires and the 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 Philips, or any other manufacturer or supplier named on this page. Philips, IntelliVue, SureSigns, HeartStart, Affiniti, EPIQ, Envisor, 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.