Celwave 5882568W04 dual directional RF coupler assembly. This is a commercial-grade unit designed for sampling RF energy in both forward and reverse directions, with an additional forward feedback port. Commonly used in repeater systems, amplifier chains, and RF monitoring applications.

Possible use for 900 MHz ham, use google or your own sources to determine this.

Features large 7/16 DIN mainline connectors for high-power handling and multiple BNC ports for signal sampling. Rugged construction typical of Celwave infrastructure components.

This is a band-specific device and not a general-purpose broadband coupler. Exact frequency range, coupling values, and performance characteristics are not provided here.

Buyers should consult available online resources, manufacturer information, or perform their own testing to determine suitability for their intended application. This is all we know on it. 

Unit is sold as shown. Might be unused but we are selling it as a used it.