A pressure gauge, in simple terms, is a tool that helps you measure how much pressure is in something, like a tire or a gas tank. It typically has a dial with a needle that moves to show you the pressure in pounds per square inch (PSI) or another unit.
For example, if you want to know how much air is in your car tires, you can use a tire pressure gauge. You press the gauge onto the tire valve, and the gauge gives you a reading that tells you if there’s enough air or if you need to add more.
Pressure gauges are useful in various situations, from checking the air in your bicycle tires to monitoring the pressure in machines or containers that need a specific amount of pressure to work properly. They’re handy tools for making sure things are running as they should.