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auto parking sensor Parking Sensor System (VFD display+ buzzer) Features: Drill in type sensor Buzzerreminder andVFD display show the distance synchronously VFDdisplay show the distance stage by stage Micro computer CPU intelligent control Anti-electromagnetic interference Sensor color optional Technical parameters: 1.Color VFD displayer; 2.Buzzer reminder the distance, with sound switch; 3.Double CPU system, 4 sensors; 4.Barrier direction indicating; 5.Working voltage:DC12V; 6.Max power:<5W; 7.Working temperature:-40 80°C; 8.Indicating distance: 0.3m 2.0m; 9.Warning distance:0.3m 1.5M; 10.Warning volume:>50dB; 11.Ultrosonic frequency: 40KHz.