Giving BT's listers 1st shot. I have a brand new in box Sentry Plus ADS-B receiver. I used it one time for a demo. Works perfect, ready for someone that will actually use it. Just sitting on my shelf. Sporty's lists it for $799. I'll take the first cash offer of $500 plus shipping. I don't do any of the online payment methods (old school), so will take cash, check (once posted) or cashiers check. Probably best to e-mail me (weebs@centurylink.net) or text me (Five05) 980-7zero69.