Standard single-channel model (no audible tone). Ideally suited for synchronizing single-mag engines such as ultralights, race cars, motorcycles, outboard motors, etc. Eliminates all guesswork and provides a greater safety factor by creating perfect timing quickly and reliably. Simply attach the two to the magneto and ground, then adjust until the "closed" LED goes out and the "open" LED lights up. Very easy to use and virtually foolproof.
See p/n LED52 Deluxe Dual Aviation Magneto Timer or LED52N Deluxe Dual Aviation Magneto Timer for aircraft-specific versions of this product.