Longacre 50451 Standard 0-15 PSI Glow In The Dark Display Tire Gauge Battery-free tire pressure gauge that gives you quick and reliable readings. Heavy duty body with a 2 glow-in-the-dark dial face so you can receive easy readings in all lighting conditions. Equipped with an Air pressure release button so you can get the correct air pressure with ease. Flexible 14 hose with ball chuck for your convenience. Does not hold pressure.