Air Lift Analog Pressure GaugeAir Lifts Analog Air Pressure Gauge checks air spring pressures, tire pressures, or anything else that uses a standard Schrader valve. The gauge features a deflate button, lowering air pressure no matter where you are. This kit has a thread on style connector that can be threaded onto a Schrader valve for hands free pressure reading and deflation. The kit also comes with a small carry bag for gauge storage. Warranty