Works very well. I installed four sensors on my trailer tires on my 33 foot fifth wheel. And put the display on my dashboard, it works very well, no problems and easy to set up. I researched this and all the reviews very well and finally decided to risk the price. I'm very glad I didn't have any complaints. Easily set up a loud alarm. Updated six months after original purchase. I was recently riding our 33 foot fifth wheel and on a hot day I noticed a tire getting hotter and pressure building. This cleared the alarm and I press the button to turn off the alarm. I watched it for a while and the temperature kept rising and the pressure kept rising. Tries to slow down and all. Then the alarm went off again saying the pressure was 17psi. Looked at my wife and said I need to get off, we're going three lanes and about a mile where it's safe to get off. When I got off I looked back and saw that all the tires were fine and there were no problems. The alarm now reads zero psi. as i pulled off the freeway i looked at the tire and yes, the whole thing was starting to fall apart. I was so glad that neither the camper nor the rim were damaged. Changed the wheel and off we went. I will never travel without an alarm monitor like this again. $69 I've ever spent. I don't know what $350 models do, but this thing works.
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