The Department of Defense, through the Naval Air Warfare Center Aircraft Division (NAWCAD), is seeking information from potential vendors regarding the procurement of rack-mounted Analog Discrete Input Measurement instruments for the Engine Test Instrumentation Replacement System (ETIRS). The instruments must meet specific performance and environmental requirements, including compliance with military standards for vibration and environmental conditions, and should ideally be Commercial Off the Shelf (COTS) or Modified COTS products. This Request for Information (RFI) is intended to assess market capabilities and does not constitute a solicitation; responses are due by December 16, 2024, at 4 PM EST. Interested parties should contact Justin Panecki at justin.p.panecki2.civ@us.navy.mil or Terrence Shearer at terrence.d.shearer.civ@us.navy.mil for further details.