The Department of Defense, specifically the Naval Air Warfare Center Aircraft Division (NAWCAD), is conducting market research to identify potential sources for rack-mounted Analog Discrete Input Measurement instruments for the Engine Test Instrumentation Replacement System (ETIRS). The procurement aims to acquire instruments that meet specific performance and environmental requirements, including compliance with ARINC-429 communication standards and various military specifications. These instruments are critical for ensuring accurate measurements and reliable performance in naval aviation applications. Interested vendors must respond to the Request for Information (RFI) by December 16, 2024, providing documentation of their capabilities, past performance, and estimated pricing, with inquiries directed to Justin Panecki at justin.p.panecki2.civ@us.navy.mil or Terrence Shearer at terrence.d.shearer.civ@us.navy.mil.