SGC SG 230 Smartuner Automatic Antenna Coupler for all HF-SSB Bands 1.6-30 MHz For Sale

Unit came on a boat that I bought used. I have powered it on. All the relays all click, and the power indicator comes on as it should. This is the only test that I have performed, as I did not have an antenna to tune it to and I do not have the expertise to perform any other tests on this equipment. There is a spot of damage on the included cable where the insulation has a small cut--please see the pictures. The unit itself appears to be in good condition. The cable is an SGC part.
The SGC SG 230 Smartuner is a microprocessor controlled automatic antenna tuner that will get the most from your antenna for maximum range and clarity. Designed for use with just about any HF-SSB. Operates on 12V DC, with a 24V option. For marine, aviation, Ham, and para-military applications. Waterproof housing.