The Airforce tyre inflators have many great features -New Viewing Window - Large window gives a greater field of viewing -Light Weight - Gauge body weighs 923g, less work strain and easier for repetitive use Biomorphic Shape - Ergonomic, easier to use and less prone to damage when dropped New Valve Mechanism - Simplified 2 stage mechanism design prevents user having to "push" against full line pressure on deflate preventing fatigue New Piston & Seal Design - New design, less drag, reduced friction & less movement inertia means no internal corrosion, no sticking and no skewing of accuracy Accuracy Standards - Tested to over 400,000 cycles at 100% accuracy, meets EC 86/217 and compliant with EN12645:2014