Likes: 7

Each AR 2 comes with 2 OPTO sensors and instructions.I used a controller with a/c +/- out to power the AR 2,and 22 gauge solid wire and solderless connectors.Everything works as it should;however;stranded wire is recommended,as well as soldering the connections.

Likes: 7

Controller and wiring sold separately .

Likes: 7

Controller and wiring sold separately.

Likes: 6

Trolley center front operated by AR 2.

Likes: 7

Trolley in far background operated by AR 2. The AR 2 adds life and action,lots of fun.