Car Auto Tire/Tyre Pressure Monitor Valve Stem Cap Sensor
With 3 colour indicator / alert 


Just by looking at the valve cap colour of your vehicle wheel,
you would know which tyre is needed to be pumped air
without even visiting the air pump in the petrol station.
Colour 1) Green- Normal ( 240 Kpa above)
Colour 2) Yellow- Warning (lesser then 240 Kpa)
Colour 3) Red- Danger (severely lesser than 240 Kpa)
Good for cars without tire Pressure Monitoring System.
Sold 4pcs per set