Surveyor S4 S4-Q-BXX-XXXRecalls & reported problems
Mortara Instrument, Inc. · Electrocardiographic telemetry monitoring system transmitter · Class 2
Data updated Oct 18, 2026 from official FDA records · Editorial policy
- Adverse event reports
- 4
- Deaths reported
- 0
- Injuries reported
- 0
- Recalls naming it
- 0
Summary
The FDA's MAUDE database contains 4 adverse event reports that list this exact device (DI 00812345027846), received between Nov 16, 2023 and Sep 7, 2026 — classified as 4 malfunctions.
The most frequently reported specific device problem is “Unexpected Shutdown” (3 reports).
Reports come from manufacturers, hospitals and patients and are not verified by the FDA. A report does not prove the device caused the event, and counts can't be used to compare devices or estimate failure rates. What reports can and can't tell you · How this data works · Data updated Oct 18, 2026.
Reports received per month
Most reported problems
Device problems
- Unexpected Shutdown3
- Intermittent Loss of Power1
Patient problems
- No Clinical Signs, Symptoms or Conditions4
Recent adverse event reports
The 4 most recent of 4 reports, in the reporter's own words as published by the FDA.
MalfunctionSep 7, 2026Unexpected Shutdown
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 50651709 ↗MalfunctionAug 6, 2026Unexpected Shutdown
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 50152357 ↗MalfunctionJun 3, 2026Unexpected Shutdown
A DISTRIBUTOR CONTACTED TECHNICAL SERVICE TO REPORT THAT THE S4 DEVICE POWERS OFF BY ITSELF AND DOES NOT TRANSMIT ANY SIGNAL. THE PROCESS STEP DURING WHICH THIS OCCURRED WAS UNKNOWN. THERE WAS NO PATIENT/USER INJURY, MEDICAL INTERVENTION, SYMPTOM, OR ADVERSE EVENT REPORTED.
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 25376438 ↗MalfunctionNov 16, 2023Intermittent Loss of Power; Intermittent Loss of Power
THE CUSTOMER REPORTED THE DEVICE WAS RESTARTING CONTINUOUSLY. THERE WAS NO PATIENT/USER INJURY REPORTED. THIS REPORT WAS FILED IN OUR COMPLAINT HANDLING SYSTEM AS COMPLAINT # (B)(4).
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 18151594 ↗
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- Patient Information Center IXPhilips Medical Systems Hsg · MONITOR, PHYSIOLOGICAL, PATIENT(WITH ARRHYTHMIA DETECTION OR ALARMS)82 deaths941 reports
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- Tempus Pro 00-1024-RRemote Diagnostic Technologies Limited · Monitor, Physiological, Patient(With Arrhythmia Detection Or Alarms)5 recalls541 reports
Sources and updates
- Device record: FDA GUDID, file dated Oct 13, 2026 · View this device in AccessGUDID ↗
- Adverse event reports: FDA MAUDE, file dated Oct 14, 2026 · each report above links to its original FDA record
- Recalls: FDA Medical Device Recalls, file dated Oct 16, 2026
- Page last rebuilt: Oct 18, 2026. Data downloaded through openFDA, which notes it is not validated for clinical or regulatory use.
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