Unit covered with rubber sleeve for extra comfort and durability. On power button, auto shut off in 90 seconds if not in use. Features 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. Includes: 21 stainless steel hose. Product Features:Easy change chuck system1 button operationAuto shut-off for increased battery lifeDisplays KGF, BAR, PSI, KPA measurementLarge face LCD digital read-out