Proudly assembled in USA with U.S. and global components. Engineered for resilience, the Tire Inflator Gauge with Dual Head Air Chuck is built to withstand the rigors of frequent use to endure a for the long-run. Experience precise inflation like never before with our performance-tested and calibrated device, offering a wide pressure range of 10-160 PSI along with a 15� EPDM air hose. From automobiles to bicycles, trailers to ATVs, this versatile tool caters to a multitude of inflation needs with ease. Effortlessly inflate tires with our dual head air chuck, designed for seamless one-handed operation and featuring lock-on thread connections for enhanced user convenience and efficiency. Take control of tire air levels with a deflation button for the best optimized tire performance. We prioritize user comfort and convenience with thoughtful features such as an ergonomic grip for prolonged usage, a magnifying window lens for improved pressure readings, and a full-swivel chuck for added ease during inflation tks. Additionally, simplify maintenance and repairs with easily replaceable gauge and valve cartridges, minimizing downtime and ensuring uninterrupted usage. Dual Head Tire Chuck Usage: If air escapes through the off-side of the chuck when connected to the tire's Schrader valve: Release the trigger and remove the inflator from the valve. Point the straight side of the outlet upward (ensure it's not directed at anyone). Squeeze the trigger to allow air flow, causing the sealing valve to drop. While air is flowing, reattach the chuck end to the Schrader valve to initiate tire inflation. Limitations of Dual Head Tire Chucks: Unable to inflate completely flat (zero air pressure) tires. Normal tire pressure is necessary for the sealing valve to function properly; however, if a tire has zero air pressure, the self-sealing valve cannot react effectively.