Product Features

• Deluxe model features dual channel (left & right), plus audible tone.
• Sounds a different tone when left-in-sync, right-in-sync, and/or both-in-sync.
• Uses electronic inductance to accurately signal when points break.
• Very compact form factor: 3.125" (79mm) wide x 5.5" (140mm) long x .75" (19mm) high.
• Completely safe as it does no use any high voltages (4.5V max test voltage).
• Comes ready to use with a 9V battery.
• Specifically designed for aircraft use.

Deluxe aviation model with dual channel and audible tone. Designed specifically for aircraft magneto synchronization and engine timing. Eliminates all guesswork and provides a greater safety factor by creating perfect timing quickly and reliably. Simply attach three clips to the magneto, and adjust until the illuminated LED turns off (extinguishes) and the tone sounds.