The RoadTech Flow-Through TPMS Sensor Kit is available in 4 sensor configurations and is the ultimate solution for serious RVers, truckers, horse trailer owners, and boat haulers who demand real-time, high-accuracy tire monitoring and easy inflations on the go. Designed specifically for metal valve stems, these rugged flow-through sensors allow you to check your tire pressure and temperature without removing the sensor, even during inflation. When paired with the included RoadTech HD wireless monitor, you'll enjoy continuous updates that help prevent blowouts, improve fuel efficiency, and ensure safer travels. Perfect for RVs, motorhomes, 5th wheels, toy haulers, livestock trailers, heavy-duty towables, commercial haulers, and overland trucks, this complete tire pressure monitoring system gives you everything needed to monitor your tires straight out of the box., 5th wheels, toy haulers, livestock trailers, heavy-duty towables, and even commercial haulers, this tire pressure monitoring system is a must-have upgrade for anyone hauling precious cargo. Built to withstand harsh conditions and designed for easy wireless installation, this kit is a favorite among full-time RVers, over-the-road truckers, and equestrian haulers who care about safety and performance.