... monitoring system TM-507RV+SE six sensors Increase safety, tire life, fuel economy wireless real-time Tire pressure monitoring ... TM-507RV+SE six sensorsTire pressure monitoring systemIncrease safety, tire life, fuel economy The wireless and real-time ... accuracy ±3°CTransmission power < 10dBmTransmission frequency 433.92MHzBattery life (CR1632) 2yrs, replaceableSize diameter 27mm, height 23mmWeight 15 ...