The Department of Commerce, specifically the National Institute of Standards and Technology (NIST), has issued a Sources Sought Notice seeking market research for an Integrated IMU-Based Human Motion Tracking System and EMG Measurement System. This dual-sensor system is intended for evaluating users of exoskeletons within the Mobility Performance of Robotic Systems project, requiring an IMU system with a static angular accuracy of less than 2 degrees and an EMG system sensitive to muscle effort across eight body locations. Each system must have a minimum battery life of 4 hours, record data at a rate of at least 100Hz, and stream data to a local computer without cloud processing, along with a software license for data collection and synchronization. Interested parties should provide detailed product information and compliance with technical specifications, and they can contact Marvin Jean at marvin.jean@nist.gov for further inquiries. This notice serves as a market research tool and does not guarantee a solicitation or contract award.