The Astro Pneumatic 3018GR Digital Tire Inflator Gauge features an AAA powered design that delivers four times the battery life and simplified installation. Its twenty one inch stainless braided hose with bend guard provides durability and flexibility. With zero point one psi resolution, the gauge supports TPMS service and offers precise readings across a three to one hundred seventy five psi range. The large backlit LCD ensures visibility in low light, while the rubber sleeve adds comfort and protection. A two position lever allows controlled deflation and inflation, and the unit works with nitrogen systems, CO2 and standard air. Accuracy complies with European 86/217/EEC and ANSI B40.1 standards.