... No more tire break-ups due to running tires under inflated.How to use it:Make sure your tire ... anti-clockwise.2. Remove batteries and cover, to calibrate and memorise the tire pressure, firstly ... example, if you want tire pressure sensor to blink at 30psi, you should calibrate the ... GPS tracking system provides location, Speed, heading direction, time, GPS signal accuracy, fuel level data, GSM cell ID, ...