VICTONY Tire Pressure Monitoring Intelligent System with Alarm Function+4 External Sensors Monitors the pressure and temperature of each tire dynamically at the same time. Fast leakage alarm by unique visible and audible warning with settable pressure and temperature alarm level. Surprise monitor with USB port design for your car application such as telephone. Easy installation with waterproof and dustproof. Four Tires Pressure Data at a Easy Glance.