I bought two from ebay. They were under different names , but came from the same mailing address. They appear to be the same generic finders CW sells. Each cost about $3.00 plus shipping. I bought two so I would have a spare when I misplaced one. The one I've used works well. I suppose you could find a more elaborate one, but why bother.
Ken, Judy, and the Angels--2005 Fleetwood Southwind--2008 Cargo Trailer--2003 EZGO Golf Cart