Check the listing for details. Riser Bond 921E Negative Pulse Digital Time Domain Reflectometer 921E. Condition: Used. Listed at 750.00 USD. This Riser Bond 921E Negative Pulse Digital Time Domain Reflectometer is a top-of-the-line tool for measuring and inspecting various electronic systems. Its high-quality design ensures accurate and reliable performance, making it a valuable asset to any business or industrial setting. With its SKU number 2084AK F2i, this reflectometer is easy to identify and catalog for future use. Ideal for use in the Test, Measurement & Inspection category, this Riser Bond 921E reflectometer is perfect for locating faults and reflecting on the performance of various electronic systems. Its brand and model, Riser Bond 921E, ensure that you are getting a top-quality product that will meet all your inspection needs. Add this tool to your collection today and experience the benefits of accurate and reliable reflectometry. *9.24.2**..