For NISSAN CAREUD U912 Auto Wireless TPMS Tire Pressure Monitoring System with 4 Sensors LCD Display Embedded Monitor Note: This product is specified forNISSAN which have a 21 *36 mm hole. Description: This wireless tire pressure monitoring system comes with four built-in sensors and a digital monitor to monitor the tire pressure and temperature of your vehicle 24 hours every day. By employing the advanced American Freescale 6-in-1 wireless sensors which highly integrated pressure and temperature sensor we provide the top-of the-line and reliable TPMS for you. Furthermore, the intuitive monitor and smart buzzer alarm will secure a safer driving experience for you. To secure you a driving experience and extend the service life of the tire Research shows that 30% car accident is caused by tire failure, 50% tire life time reduction is caused by under-inflation or over-inflation even most of them looks like the tire are properly inflated. Thus, you are in need of a TPMS (Tire Pressure Monitoring System) to help you monitoring the tire of your vehicle and warn you about the abnormal tire temperature and pressure---only to increase driving safety and reduce car accident.Main Features * Reliable and easy to install *Advanced American Freescale 6-in-1 wireless sensors * The monitor can beused while the car start * Real-time tire pressure and temperature monitoring(Displays pressure or temperature of 4 tires simultaneously) * Fixed high/low pressure/temperature warnings * Instant audio alarm of abnormal pressure or temperature * Intuitive and clear interface to display the parameters of the 4 tire in turn * Sleeping mode available, super easy to install * Improve fuel efficiency, extended tire life and avoid abnormal wear of car parts * Two pressure unit(psi/bar) supply for user to select * Inter valve sensors,adjustable sensor mounting angle,water resistant * Sensors batteries will last up to five years(you canreplace the batteryAutonomously, do not need to