... TM-507RV+SE six sensors Increase safety, tire life, fuel economy wireless real-time Tire pressure monitoring system TM-507RV+SE six ... sensorsTire pressure monitoring systemIncrease safety, tire life, fuel economy The wireless and real-time tire pressure monitoring system for trucks trail ... 433.92MHzSize (L*W*H) 88mm*60mm*24mmWeight 125g Tire pressure monitoring system TM-507RV+SE six sensors