Longacre Digital Air Density Gauge Category_Hardware 2 CMR air intake is

2 CMR air intake is replaceable and the helmet can be used without the air intake

superior features

the FAST Racer Series 150 CFM Desert Blower ensures clean air without any restrictions

poly-fabric inner lining that is highly breathable and comfortable

All necessary fasteners are included

Longacre Digital Air Density Gauge Category_Hardware 2 CMR air intake isAir Density (or RAD relative air density) is a valuable tuning tool to make sure your jetting is at its optimum. Longacre's Digital Air Density Gauge helps accurately measure your air density with an easy to read digital display. The gauge records your baseline for future reference. If the air density changes (and it will), a Red LED flashes to let you know to change jets (alarm with + 5% change). The compact gauge also shows the current temperature