4x 2.4 bar car tire valve cap pressure table gauge monitoring warning cap sensor indicator eye alert monitoring pressure

4x 2.4 bar car tire valve cap pressure table gauge monitoring warning cap sensor indicator eye alert monitoring pressure features: durable and practical. With transparent window, any abnormal tire pressure will be displayed in time.
it ensures normal tire pressure, reduces tire wear, and extends tire life.
product features: improve fuel application rate; pack tire normal pressure; extend tire life.
fit on any standard size existing tire valve stem.
visually alerts you when the tire pressure is low to help avoid premature tire wear or blowouts from under-inflated tires.
specifications: style: plastic core tire pressure cap/copper core tire pressure cap material:plastic+copper size:approx.2.3x1cm/0.9×0.39inches note: 1.please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. package includes: 4 x tire pressure warning caps