[USB Alarm Display] TPMS displays 4 tire pressure or temperature at the same time. TPMS automatically updates tire pressure and temperature to protect your driving safety. The tire pressure monitoring system will warn when the tire temperature is very high and the pressure and electricity are too low. Tire puncture when slow and fast air leak alarm [For Android DVD Navigation] The APP is compatible with Android DVD Navigation. Real Man voice alerts tire pressure in abnormal conditions. Plug and play, simple and convenient installation. Supports English, Simplified Chinese, and Traditional Chinese [4 tire sensor] The 4 sensor has a coded display screen. You only need to code the sensor according to the installation position. The sensor can be easily coded. When the valve on the second sensor is installed, the label of the display screen is coding mode [Easy matching and changing mode] Sensors that match the tire and mode. Tire change mode allows easy replacement of any two tires. Selectable tire pressure units: BAR, PSI. Tire pressure external sensors are made of high-quality materials, sturdy, anti-theft, waterproof, and easy to install [Easy installation] Simple DIY installation within minutes, no dynamic balancing, no risk to the tires. Adjustable high / low tire pressure alarm value. Features: TPMS Android Car Stereo Tire Pressure Monitoring System,Real-time reminder,Low / high pressure,High pressure,High temperature.No signal.Low power. : External sensor parameters: Temperature measurement accuracy: -40 C-125 C Working temperature: -40 C-125 C Pressure measurement range: 0-8Bar TPMS receiver parameters: Voltage: DC 5V Working current: less than 15mA Transmission frequency: 433.92MHz Operating temperature: -40 C-85 C Interface mode: USB colour: black Material: ABS Package Contents: 1 * Tire Pressure Receiver 4 * External Sensor 4 * Nut 1 * Wrench 1 * Manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.