**Update** After the trip I have some additional comments and the reason I was so close to returning it. The display is very dim, difficult to see in bright sunlight and impossible to see at all with polarized sunglasses. After driving it for about 30 minutes the alarm started ringing, the high pressure alarm. I just ignored her until I got home. I tried going in and adjusting the pressure and alarm settings and couldn't get past the first option to set the bar or PSI. It never gave me the option to select PSI, just a bar. I tried everything and read the very very BAD user manual over and over again and it never let me get back on PSI. ***Prior to posting this update I tried again to see if I can get it.*** .*****After 40 minutes of fiddling with this thing I have now returned it to psi and will save it. . I don't think you could have done a more user-friendly way of programming. whoever came up with this should be fired. Potential buyers should also be aware that this company does NOT have a customer support website or 800# or anything, so you better hope all goes well. *** I got it today and just finished installing it. Instant impressions; Now most things are made in China which is a big minus for me. It has very poor installation instructions. Diagrams where you can try to understand how to install the display mounts and the display itself are really useless. You just have to use your common sense. The programming instructions are also very poorly done and I won't do much, I'll just use the defaults for now. The display unit attaches to the bracket with a single screw, which is too long, causing the display to rattle and rotate. I had to "create" a grommet to put between the display unit and the bracket to make it tight, tight and free from movement. I want her. The display is ok, not sure if it will be bright enough to see well on sunny days but this time it will. Of course, on the plus side, the installation was very easy, you just have to put the "protection" nuts in place and then the sensors and turn on the display. I think for the price it's worth trying them out. If I hadn't just put new tires on 2700 miles ago I would have opted for a much better internal TPMS sensor. These last until I need a new set of tires.