GoSafe TPMS 500BT (tire pressure monitoring system) is the newest technological device from PAPAGO! designed to keep drivers safer on the road. By installing the GoSafe TPMS 500BT the ability to gauge your tire pressure with precise accuracy is under your control. The tire sensors will automatically inspect the pressure and temperature by transmitting real-time statistics to the receiver via Bluetooth technology. The receiver then wirelessly transmits the information to the driver's mobile smart device. When abnormal pressure in any tire increases or decreases the sensors detect this change and immediately sends the signal to the GoSafe TPMS APP. The App will emit warning sounds and a flashing light to remind the driver to stop the vehicle and check the tires. With the GoSafe TPMS 500BT you can easily track each individual tires' pressure quick and easy. 4x Lithium Metal batteries included.