Tire inflator gun function: Inflating, measuring and pressure relief for tires. Reliability: With professional anti-vibration sheath, silicone oil, filling in a coffret pressure measuring more accurate, higher sensitivity. Surface treatment: Plastic spraying. Professional quality air tire inflator with gauge; Ideal for use on automotive, bicycle, motorbike, car, farm equipment tires and most inflatable; Hardened and tempered for maximum durability; Professional quality. Scales selection: bar, kpa, kg/cm2, psi. Inflation gun, chuck and gauge are all combined in one easy to use unit Clip design enables hands-free chuck use Built in relief valve for reducing in over-inflated tires Includes flexible hose for easier use Trigger controls airflow into tire Air inlet: 1/4" NPT (M).