ASTRO PNEUMATIC 21" TPMS Digital Tire PressureInflator with Quick Chuck AO3018

Easy Change Chuck System 1 Button Operation, Auto shut-off for increased battery life Displays KGF, BAR, PSI, KPA measurement, Large face LCD digital read-out Unit covered with rubber sleeve for extra comfort and durability, On Power Button, auto shut off in 90 seconds if not in use LCD Back Light Allows accurate reading of tire pressure, assisting with TPMS (Tire Pressure Monitoring Systems) Two position lever. 1st position deflates, 2nd position inflates Works on a nitrogen system With 21" Hose Measuring Range: 3 ~ 175psi, Units: PSI / BAR / KPA / KGF, Resolution: 0.1 PSI Working Temperature: 32??F~104??F (=0??C~ 40??C) Power: Lithium Batteries, Battery Lifetime: 140hr Accuracy: Compliance with European Community, Council Directive 86/217/EEC, 0 ~ 58psi, ?¤1.2psi, 58 ~ 145psi, ?¤2.3psi, over 145psi, ?¤3.6psi