Longacre Digital Air Density Gauge

Keep Your Motor Running at its Peak Horsepower

• Accurate electronic Air Density measurement with easy-to-read digital display
• Shows your baseline so you don't forget
• A Red LED flashes to let you know if you need to change jets (air density changed by +/- 5%)
• Also displays current temp and barometric pressure with the push of a button
• Battery indicator on display
• Auto shutoff
• Foam lined silver carrying case included

Air density or RAD (relative air density) is used as a valuable tuning tool to keep your jetting at its optimum. To use this gauge get a box of spark plugs and work on your jetting, reading the plugs as you go.

When you get the motor just where you want it, record the air density or set the baseline on the digital air density gauge. Later - this could be later today, tomorrow, next week or next month - if the air density changes - and it will - you will instantly know how much to rejet to keep that peak.