2.4 bar tyre pressure indicator
These caps come in set of 4 and the colour shown will indicate the adequacy of the tyre pressure. These caps measure tyre pressure. The tyre pressure cap can be screwed onto almost any car. A 15% reduction in tyre pressure will cause your car to increase 6% of fuel consumption and your tyre may wear twice as quickly thereby increasing the risk by 30%.These caps visually alerts you when the tyre pressure is low to help avoid premature tyre wear or blowouts from under inflated tyres material .its chromed metal/plastic round style for use .In the standard tyre pressure the transparent window should be GREEN,this means normal driving conditions.if the tyre pressure is slightly lower than the standard of about 10% ,the transparent window will be YELLOW and your tyre should be inflated. When its about 25% lower than the standard tyre pressure the transparent window will turn RED and you should immediately check and quickly inflate your tyre. So this monitor helps car owners inflate tyres to the required pressure. Keep your caps clean so that it is easy for you to check the indicated colour