ORIGINAL: BBOwen
Man this what have been looking for. I was getting tired of paying $60.00 for other brands of optical kill switches.
I have had three of these installed, and in use for many months.... flawless performance, good price. And he includes a BRIGHT red LED that I mount on the engine box, where I can see it from the front of the airplane. Even in direct sunlight, there is enough shade in the cowling to let that light show for a long ways...it is very easy to setup and works very well.