inputs.text: want frustrated buy product - absolute garbage american customer not waste time money item not work advertised 1st item white led no color anywhere may displayed photos 2nd unit not go mph read correctly example driving 14 mph car speedo 131 mph gps unit shows speed 39 41 mph speed higher speed 42 mph shows 96 mph no way set rotational speed adjustments aftermarket size tires car came 15 like mine 2006 scion xb put 18 tires still read rotational speed 15 factory sized tires result inconsistent erroneous readings display also lags seconds car stopped still reading seconds speed no adjustments anything save restart car go back europeanoriental settings unit not allow set standard used vehicle instead goes many minutes checking always picks wrong one mine iso 157654can 11500 chose slowest one iso 91412 wrongand not let set correct one unit says tpms tire pressure monitoring system wrong fail tell requires additional component not sell chinese websites reporting not functional yet meaning buy tpms sensor unit plug still not work unit not ready internally accept tpms datarecommend stay away request us vending sites stop allowing ads without verifying item works advertised