I bought the Tire Minder brand for my travel trailer. I am extremely pleased with it. I has worked perfectly and was very easy to install. I am a 65 year old female and this is my first travel trailer. Their company and customer service is in Florida. I called them to ask a question and immediately talked to a human. The man at the company stayed on the phone with me while I installed the system. It took about 5 minutes to install and was very easy. The display continuously displays the tire pressure and temperature while you are driving. I highly recommend the Tire Minder system and their customer service.