Real-time monitoring: The tire pressure monitoring system provides real-time tire pressure and temperature data, allowing you to monitor tire condition at a glance and take timely action to avoid potential safety hazards. Accurate and reliable: Equipped with high-precision sensors, TPMS accurately measures tire pressure and temperature, providing reliable data for a safer driving experience. The system also features advanced algorithms to ensure accurate readings and minimize false alarms. Easy installation: The external TPMS is incredibly easy to install. Simply attach the sensors to your tire valves, connect the receiver to your Android car's DVD navigation system, and you're ready to drive. No complicated wiring or professional installation required. Specifications: Color: Black Size: 24.8x4x1.1 cm Material: ABS + Electronic components Pressure range: 0-8bar/0-116 psi Chip: Jiejie Frequency: 433.92Mhz Pressure accuracy: ±0.1 bar/±1.5 psi Standard low pressure alarm value: 1.8 bar Standard high pressure alarm value: 3.1bar Lifespan: about 2-3 years typical value (related to vehicle shape time/mileage) Water resistance: IP67 Battery: 300mAh high-temperature polymer lithium battery Charging time: about 2h Battery life: about 2 months (solar panel statistics are uncertain) Pressure unit: bar/psi Temperature unit: °C/°F Working voltage: DC-5V input Working mode: connect to Android car DVD navigation Package includes: Connector x 1 Detector x 4 User manual x 1 Data cable x 1 Anti-theft nut x 4<br> <br>3M Glue x 1