Fangrui Product Details Features :1 Using Imported Chips, The Image Color Is High-definition, More Realistic.2 Viewing Angle 170 Large Visual Range, Reversing Safer.3 Reverse Reference Line (optional Electronic Ruler Line), The Obstacle Distance Is Clear At A Glance 4 Digital Sensor Chip Processing, Night Vision Effect Is Obvious 5 Multi-layer Waterproof Design, Truly High Pressure Washing And Soaking Waterproof 6 Mounted On The Tail Handle And License Plate Light, Equipped With Screws And Washers 7 The Video Cable Is Connected To The Monitor, And The Power Cable Is Connected To The Taillight Power Supply. When The Vehicle Is Reversing, The Reversing Monitoring System Automatically Starts Working, And The Situation Behind The Car Can Be Clearly Seen. Note: Cut Off The White Line, So There Is A Ruler. Cut Off The Green Line, It Will Become A Rear View. Specification: Size: 2.8*2.2*2.5cm (upper Diameter * Bottom Diameter * Height) Sensor: Pc1089 Effective Pixels: 928*520 Resolution: 520tvl Electronic Shutter: 1/50-1/100000s Ca