If you have ever visited a petrol station to fill your tyres, you must have noticed a metered gauge that shows the readings of the air pressure inside your tyres. This metered round object is known as air pressure gauge. It is mandatory to check the air pressure of your car tyres from time to time to get stupendous performance from your vehicle. The correct air pressure of your tyres will increase the lifespan of your tyres. Air pressure gauges are of different types. You have the old-school pencil-type pressure gauge which consists of a stick that is printed like a ruler and shows measurements in PSI when it is attached to the valve of the tire. Since this gives incorrect readings, it is not preferred. Then comes the most common air pressure gauge which is the dial-type gauge. This device consists of a round dial with a needle. When the dial gauge is inserted into the tyre valve, the pointer moves which indicates the pressure. The mechanism is based on analogue principles. ...
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