Tire Pressure Monitoring System For Android Navigation with 4 External Sensors Real-time Display 4 Tires' Pressure & Temperature

Features:
Easy to install.
Powered by USB, no wiring required.
Can be put into the car glove box.
This tire pressure monitoring system contains a monitor and four sensors.
When you use the external sensor, sensor use anti-theft nut directly fixed in the original car gas nozzle.
Sensor measuring tire pressure and temperature, and send the information of tire to TPMS receiver, the receiver send the date to DVD by USB port.
When the tire pressure is low or leak and high temperature, DVD have a warring through sound and light,so as to remind drivers to pay attention to vehicle safety.