Philips recalls ambulance parameter extension kit M475: May cause ECG leads to go off in hot, humid environments. Affected units were sold to EMS providers. No remedy specified.
M4758A Ambulance Parameter Extension (APE) kit may cause ECG "Leads Off" condition in hot, humid environments
Philips is recalling its Ambulance Parameter Extension (APE) kit M4758A, which can cause ECG "Leads Off" errors in hot, humid conditions. This could lead to incorrect heart monitoring during emergency medical use.
The APE kit may malfunction in hot, humid conditions, causing the ECG to show "Leads Off". This could lead to incorrect heart monitoring during critical emergency medical procedures.
EMS providers who use the Philips HeartStart MRx Monitor/Defibrillator with the M4758A APE kit are most at risk. The recall applies to units sold in EMS environments.
Check if you have the Philips HeartStart MRx Monitor/Defibrillator with the M4758A Ambulance Parameter Extension kit. These were sold to EMS providers in environments with high heat and humidity.
Look for the M4758A Ambulance Parameter Extension (APE) kit with the Philips HeartStart MRx Monitor/Defibrillator.
The M4758A kit may cause ECG "Leads Off" errors in hot, humid environments, which could lead to incorrect heart monitoring during emergency medical procedures.
The recall record does not specify a remedy.
EMS providers who use the Philips HeartStart MRx Monitor/Defibrillator with the M4758A Ambulance Parameter Extension kit.
We’ve drafted a message you can send Philips to request your refund or repair — edit it as you like.
Subject: Recall Z-1342-2020 — Philips Philips Hello, I own a Philips that is covered by recall Z-1342-2020 from Philips. I’m writing to arrange the remedy described in the recall (a refund, repair, or replacement as applicable). Could you please tell me the next steps to resolve this? Thank you.
Experiences, tips, and questions from readers. Every comment is reviewed before it appears.
No comments yet — be the first to share your experience.
The facts (hazard, remedy, dates, manufacturer) are pulled from the official FDA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
