Why we need TPMS?-Tire Pressure Monitoring System, also called TPMS, uses pressure monitoring sensors within each tire to monitor specific pressure levels.-Combined with the solar energy display, it lets driver get the real-time tire pressure data, temperature data and status, warning messages at once.-With the TPMS, we can keep the tyre working within the specified pressure and temperature range at any time to reduce the damage of the tyre for safe driving.Why Choose TPMS?TPMS provides real-time data display of 4 tires. Each sensor uses Infineon original chip. Its signal transmission is stable, the battery life is long, and the installation and operation are simple, escorting your driving safety.Things you must know before use1) Connect the sensor and monitorWe have matched your monitor with the sensors, you just need to press and hold "-" to turn on the monitor, and then install the sensors according to the tire sequence, more user settings can watch our manual.2) If there is a puncture accidentTPMS could not avoid the puncture caused by sharp objects or damaged tires. Because TPMS can only monitor the air pressure and temperature over a period of time, but cannot monitor instantaneous changes. So it is only suitable for avoiding tire abnormalities caused by changes in air pressure or temperature, which occur slowly, not instantaneously.FRIENDLY REMIND: Please do a comprehensive tire inspection for at least one month and ask your tire technician to replace your faulty tire in time.What will you get in the package?1 * Tire Pressure Monitor4 * External Sensor (Battery Included)1 * USB Cable4 * Anti-lost nuts1 * Spanner1 * User Manual