... sensor with LED display 1.Buzzer alarm switch:on/off 2.Step-up buzzer alarm car reversing parking sensor 1,Numeral and ... color LED display2, Step-up buzzer alarm3,Left and right obstacle indication4,Numeral display ... unit with built-in buzzer6,Buzzer alarm switch:on/off7,2,4 sensors for option TypeLED Parking sensorBrandNeutralModel SP-580Display Type ...