This is a used but fully functional MFJ-259C HF/VHF SWR Analyzer. The unit is a reliable and versatile tool for ham radio enthusiasts. This SWR analyzer, made by the reputable brand MFJ, is designed to measure SWR levels in both VHF and HF bands. With its universal compatibility, the MFJ-259C can be used with various brands of radios. Made in the United States, this product ensures quality and accuracy in analyzing SWR levels, helping users optimize their radio communication equipment for optimal performance. The unit does include a generic 12v power supply.