Longacre 53036 2" Basic Digital Tire Pressure Gauge 0-100 PSI by .2 lb Brand New Longacre 2" Digital Tire Pressure Gauge (Longacre Part # 53036). Longacre replaced gauge number 50347 and 50348 with this gauge. Longacre digital air pressure gauge with active display | * Pressure reading is always active - no hold 2" Face with large numbers | * 0-100 PSI | * Reads to .2 PSI Air pressure release button | * External gauge bumper | * Ultra-flexible, 14" line with angle chuck; ball chuck also included | * You can view and download Longacre's Digital Tire Pressure Gauge operating instructions below.