Selling off a backup COR20. Was used for 6 months at 40% via an apex without issue. Will need a new COR connector kit which is $12.95 from the Neptune store. One time I tried to use it standalone/not connected to an apex I couldn’t get it to work so not sure if that was user error or what but when connected to apex works perfectly. Looking for $235 shipped. Please text me at 734-725-98fiveO if you’re interested. Thanks!