... system with TFT and camera Self-test function when reversing Show Distance,Buzzer Alarm 2.5 inch TFT Parking Sensor system ... with TFT and camera LD04-BB-4* Desktop 2.5-inch TFT display, placed ... . Superposition function characters, figures showed that the distance barrier, 10 around obstructions simulated show the direction of article, Bi, Bi ...