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Tyre pressure should be checked regularly to ensure safe and comfortable driving. Over- or under-inflated tyres can lead to uneven wear, premature failure of suspension elements, increased fuel consumption, and aquaplaning. Check pressure once a week and before every long drive using a tyre pressure gauge.

Operating principle

One end of the pressure gauge tube is connected to the valve stem of the tyre. The compressed air enters the tube, which makes it unbend and push the rod. In mechanical versions, this rod is connected with a dial scale that displays the readings. When the pressure drops, the tube returns to its initial position and the reading tends to zero. In an electronic device, there is a sensor that sends information to the control unit, which is then displayed on the screen.

Types of available tyre pressure gauges

By design type:

• Manual. These gauges may have either a rack or a pinion. The gauges with a rack are compact but fragile. Their measurement error is approximately 0.05%. The gauges with a pinion have a dial. These are offered at an affordable price. The components are waterproof but do not guarantee absolute measurement accuracy.
• Digital. Such gauges have a backlit LCD. They are highly precise. These gauges are expensive and require periodic replacement of the batteries.

Recommendations for using tyre pressure gauges

• Measure the pressure of cold tyres only. The required values are indicated in the vehicle manual. They may also be indicated on the door pillar on the driver鈥檚 side and the fuel filler flap.
• Before using the device, make sure that the vehicle is not overloaded. Otherwise, the accuracy of the readings may be affected.
• Follow the manufacturer鈥檚 recommendations when adjusting the pressure in non-standard tyres.
• Decrease the pressure in the tyres when driving off-road or on snow. Increase the pressure to the required value after returning to public roads.
• Periodically check the pressure in all wheels; it should be the same.
• Avoid forceful impacts and water damage to the device.
• Observe the polarity when replacing batteries in electronic devices.

AUTODOC: easy online shopping

In our online shop you can buy a tyre pressure gauge and many other devices. Should you have any questions about the product, please contact our support service. Our specialists will help you place an order so that you get your package as soon as possible.

Useful information on functions, causes of malfunction, diagnosis and replacement intervals