EK2 Universal Wireless Tire Pressure Monitoring System LED Display 4 External Sensors Tpms Car Accessories DIY Tire Gauge Wirelessly measures Tire pressure and Temperature in Real Time. Monitors up to 4 wheels Quickly reacts to abnormal pressure or temperature Waterproof and Dustproof sensors. Sensor Alarm system includedGuard Against Theft.Visual and audible warning indicator Can be Collect with Cigarette Lighter