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Custom dual-channel polarity test control box with AC power cord. The unit has been tested and is working. Features multiple BNC input/output connectors, adjustable controls, and polarity testing functions. Exact manufacturer and application are unknown.
Features:
* Tested and working
* Dual-channel design
* Polarity test controls
* Multiple BNC connectors (IN-1, IN-2, OUT-1, OUT-2, CNTRL)
* Adjustable test knobs
* AC powered with attached power cord
* Rugged aluminum enclosure
Shows cosmetic wear from previous use, including scratches, label wear, and adhesive residue. Please review all photos carefully for the overall condition and exactly what is included.

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