For TPU inner tubes with resin valves, be sure to use an extender hose to prevent the valve from overheating and melting. If the tire already has air pressure, please activate the inflation switch before connecting the valve. Head SmartHead®, fits Presta & Schrader valves Gauge / Max Pressure Backlit LED screen / 120 psi (8 bar) Accuracy ± 2 psi Charge / Charge Time USB-C / 5V 1.5A / 45 min (APPROX) Material Aluminum / Engineering grade polymer Battery 7.4 V * 600 mAh Size 5.9 x 3.5 x 8.6 cm Weight 162 g
