Tire pressure monitoring system Advantages: 1) high precision and fast response time 2) real-time monitoring whenever the vehicle is moving or not 3) the pressure alarm threshold value is adjustable 4) the battery works only when the pressure is under preset level 5) effective transmitting distance: >100 feet 6) good for vacuum tire or wheel with inner tire 7) first patented tpms product in the world For more detail of product info: www.Secutire.Com Size: 30cm x 20cm x 10cm, weight 2lb
