The Tire Patrol Tire Pressure Monitoring System keeps the fun and safety in RVing and flat towing. Pre-Assigned SensorsMost TPMS systems take 10-20 minutes to set up and pair all sensors. The more sensors you have, the longer it takes. Tire Patrol expedites the process with pre-assigned sensors labeled for each tire. When you know which sensor goes to which tire, you can pair and re-connect as fast as it takes to thread on all the sensors. Crucial DataTire Patrol provides all the critical info needed to know exactly how a tire is performing in real-time. Monitor real-time tire pressures and temperatures, as well as receive alerts in case of a blowout, low PSI, high PSI, and even high temperature in a tire. Tire data is transmitted every 3 minutes, and the sensor does a tire diagnostic every 3 seconds. If an issue is detected the sensor transmits immediately. Durable ConstructionTire Patrol is built to thrive in the elements. Each sensor is made of an ABS plastic blend and sealed with a process called sonic welding keeping out water to protect components. The threads are a brass composite for durability, resistance to corrosion, and lightweight. This lightweight sensor avoids affecting the balance of your tires and damage to your valve stems. Battery IntelligenceTo prolong battery life, Tire Patrol sensors go into battery save mode unless pressure is detected and/or the tires are rotating. Because of these advancements, each sensor's battery can last up to 3 years, as long as you take your sensors off any time you are not traveling for a week or longer. Please Note: This item is the sensors only. The Command Center (item #117224) is sold separately. Crucial data is transmitted every 3 minutes Lightweight sensors avoid affecting tire balance 2-pack add-on of sensors only (Command Center 117224 sold separately) | RVIS Tire Patrol Tag 2-Pack Add-On for 8-Tire Motorhomes | ABS Plastic