I've been using these TPMS monitors on my 44ft 3 axle 5 wheel trailer for almost a year now. You always read quickly and accurately, and the wireless color monitor is easy to see and can last for weeks on a single charge. The system is extremely easy to use and the individual transmitters stand up to all weather and conditions (you've seen them all!). I test them for accuracy about every two weeks and have ridden over 40,000 miles since first use. I recommend this TPMS for your car's health and most importantly for your own peace of mind.