Shimano PRO Digital Pressure CheckerThe Shimano PRO Digital Pressure Checker is a highly accurate digital gauge that measures to the .1 PSI and up to two decimal places in Bar mode. There is a pressure release button for fine tuning. This gauge is compatible with both Presta and Schrader valves. This gauge measures from 0-160 PSI or 0 to 11 Bar.022255242868