Hi Roger
Try the http://www.spymodex.com website. Try to talk to Peter or Shane. They have, in my humble opinion, the best quality on the market. they really helped me with a very high power laser for wildlife monitoring stuff, at serveral miles range ….. If I may council, Just dont forget the Helf and Safety issues with these things ……. Spymodex can supply all sorts of ace gear ……
Cheers
Chris