Topeak Shuttle Digital Gauge TSUTG-03The Topeak Shuttle Digital Gauge works on any Presta, Schrader, and Dunlop valve to give you a precise reading. Measures up to 300 PSI or 20.7 bar. This can be used with or without a pump. There is an air release button for better precision. The head rotates for ease of use. Will turn off automatically while idle. Weighs only 102g. The Thumb Lock is aluminum and the body is aluminum/engineering grade polymer. Dimensions: 9.2x5.8x4.3cm or 3.6’’x2.3’’x1.7’’.883466016309