No need to worry about batteries with this durable analog inflator gauge, designed with a Pistol Grip inflation/deflation gauge and complete with an air hose, easy-clip brass chuck, reusable storage case, and integrated hang loop for easy storage and access anywhere in your shop. The rugged cast metal handle is equipped with a solid steel inflation trigger and a separate brass deflation button for quick fine-tuning in case of overshot target pressure. This dial gauge comes pre-calibrated, offering 4 units of measurement readings (PSI, kPA, kg/sq.cm, and Bar), and is also fitted with a shock-resistant rubber boot which protects it from corrosion, impacts, and shocks. The 13 in. rubber hose with easy-clip brass chuck allows for one-handed inflation. Simply clip the chuck to your tire valve and adjust your pressure. PRODUCT SPECIFICATIONS: Gauge: Resolution: 2 PSI Diameter: 2 in. Units of measure: PSI (0-150), kPa (0-1000), kg/sq.cm (0-10), and Bar (0-10)Handle: durable cast metalTrigger: plated steelDeflate button: solid brass Hose: in. x 13 in. rubber w/ brass fittingsAir inlet: in. NPT male (Milton 728 plug sold separately).