Digital LCD Car Tyre Air Pressure Gauge Key Chain Ring Portable Accuracy Tester Ship from China
This item has been in stock for a long period, so the package may not very good and the battery endurance may not very long. This is originally a gift from a Japan Auto brand.
Ship from China!
There is no user manual in the package but it's easy to use: push the oval button in the middle then there will emerge a start number188.8, then it will turn into 0.0PSI(1bar=14.5PSI ). Finally, you'll see the tyre pressure number by pressing it to the air valve.