Topeak JoeBlow Pro Digital Floor Pump - 200psi / 13.8bar Digital Gauge SmartHead DX3 Air Release Button Black/Yellow. Topeak JoeBlow Pro Digital Floor Pump. An easy-to-read top-mounted digital gauge with rubber bumper impact protection delivers accurate tire pressure readings up to 200psi / 14bar. The large padded handle provides comfort while the wide steel base keeps everything stable. The extra-long hose can even reach bikes mounted in a work stand. SmartHead™ DX3 automatically adjusts to fit Presta or Schrader valves and a low profile air release button allows fine tuning of tire pressure while preventing unintended pressure release.SmartHead™ DX3 w/ air release button & extra-long hoseCR2032 x 1 (included)Cushioned rubber for digital gauge protectionWide steel base provides stability