TAZ...You have to have both. The $199 complete kit comes with the basic "receiver". It has 4 colored lights corresponding to each tire. If there's a tire problem the light flashes and sound alerts you. For $45 you can get the full display like I have. It plugs into the basic "receiver" above. Of course all is hidden except the display as you see it in my install. With the remote display it's totally programmable to your liking, shows each tires pressure, temperature, differential, etc. Well worth the $45 bucks.
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Jonahs
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