ERF19B LED screen display. System automatically activates when reverse gear is engaged. Helps to prevent dangerous and costly collisions that occur so easily when behind the wheel. 6 Sensor systems for enhanced coverage and detection. Double CPU systems. Step-up alarm. Detecting distance: 0-2.5m. This auto backup sensor is compatible with all vehicles. Package Details Weight: 910.57 g Size: 31.3*21.1*6.2 cm Package Includes 1 × Car Monitor 1 × Control Box 6 × Parking Sensor 1 × Power Cable 1 × 22mm Hole Saw 1 × User Manual