1X(The tire is designed specifically to provide precision measuremen for low pressure readings that higher PSI gauges are unable to provide< />PRESSURE RANGE: Caliated 1-20 PSI in 1/2 lb. < />MATERIAL: Chrome plated zinc-plated and aluminum tube provide long service life.< />EASY TO USE: Press the of the tire pressure into gas nozzle to measure pressure, No battery requiremen.< />pe for measu air pressure in low-pressure componen like gaen tractor, golf cart, and ATV tires, air , rese osmosis tanks, spor equipment, and much more.< />Maximum Pressure: 20 PSI. Pressure: 1 PSI. < />colour:< />Material:metal< />size:20cm< />Package Conten:< />5 x Pen Tire )