http://www.hollywoodgothique.com/2013/11/halloween-haunt-odyssey-2013-restless-spirits-and-westchester-park
HoRS is near me in Los Angeles so I stop in and help out. In fact, it was their use of tone-decoders that inspired the TD-1 (their old units had no mounting points, no connectors, no detect LED, and could not directly control a 12v output). It's only open a couple nights a year, but well worth the visit if you get the chance.
Thanks for sharing Jon. He did a nice review and even like it so much to post this review first.