Features:OOTDTYCast aluminum alloy body with valve,Bra Chuck with ClipBuilt in bleed for lowering preureMeasure tire preures from 3-200psiDisplays KGF, BAR, PSI, KPA measurementLCD display with backlight for easy readingCast aluminum handle with valvesPortable size great to keep in car and simple to usePerfect for most Car, Truck, Motorcycle and BikeHow to Use:1.Screw off the knot of tire valve.2. Fix the copper head of the gauge to the valve3. The device will show the preure.4. You need to find an inflatable pump and gas pipe to connect the inflatable mouth and hold the handle of the product inflate it through the inflatorwhen preure is low or vice versa.5. After the measurement, screw off the copper head and pre the air bleed to make the indicator to 0.Specification:Product Name: Digital Air tire inflationMaterial: aluminum alloy copper rubberDisplay mode: LCD digital displayPreure unit: four units can be switched PSI, KPa, Bar, Kgf/cm^2Measuring range: 3 ~ 200PSI / 14BAR / 14Kgf / cm ^ 2Working temperature: -10 to 50 CBattery: 2 x AAA Batteries (Not Included)Hose Length: 36cm(14in)Button function: open key (left), unit switch key (right)Working voltage: DC3.1V (with a pair of 1.5V 7 batteries) can be replacedLCD battery symbol flashes when battery voltage is lower than 2.5VWorking current: 3MA or le (with backlight); 1MA or le (without backlight)Static current: 5UAQuantity: 1PcNote:Size for manual measurement, there may be a 0 to 2 cm error, belongs to the normal phenomenon.And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package includes:1 x Air Tire Inflator