1. Product Introduction Thank you for your choosing our Blind Sport Monitoring System (BSM). This system is a vehicle assistance device that helps driver lane changing safely during driving. With the aid of 24GHz microwave sensor, probe the side / rear of the vehicle for those moving objects into the blind spot of the detection zone. The system works in two microwave sensors, two LED light (or blind region monitor), a buzzer and the wire harness which is the perfect connection of microwave and computer. There is blind zone at the rear of the vehicle which is easy to endanger driving safety. When you installed BSM into your lovely car, no matter it's day time, night time or even in the snow, you can be alerted whenever there is a moving object pop into the rear of the vehicle, with the aid of LED lighting on , blinking, buzzer sound so that the driver can be cautious when lane changing to avoid the possibility of side crash accident.This system is easy to be installed, no need to punch, non destructive car appearance. Installed at the plastic bumper left / right side of the rear of the vehicle, will instantly improve the use of the original car performance. "Lane changing has warning, make driving safer". Sincerely thanks for the choice of this system. 3. Technical parameter Number Project specification 01 Electricity Voltage : 12V 02 Maximum Power: 5W (max) 03 Working Temperature : -40C--- +85C 04 Storage Temperature : -40C--- +85C 05 Waterproof level :IP67K 06 Detection Range : Lateral Distance : 0.3m - 4m; Rear side Distance : 0.3m - 10m. 07 Detection Range Accuracy : N96% 08 Alarm Range : 0. 3m-10m 09 System Alarm Accuracy : N96% 10 Alarm method : method 1 => LED light turn on. Method 2 => LED flash and buzzer sound. 4. Cautions points during installation 1. Please prepare necessary disassembly tool and protective bumper painted sponge pad or cloth pad. 2. When you disassemble connector, MUST NOT pull wire harness in force, otherwise, will broken the harness. Please plug in connector until it practically tightened (you can hear the sound of "Click"). 3. The wire harness should be fixed with the car cable harness by tie band. Neither droop nor abnormal sound. Cut off excess tie band. 4. Disassemble and assemble procedure, please strictly follow our installation manual. Try not to break parts as careful as possible. In case of breakage, please change the parts immediately. 5. Microwave sensor installation cautions points. 1. Microwave sensor (signal launching surface) can only penetrate the plastic bumper case. 2. Microwave sensor (signal launching surface) in the front, must be no metal intervention. 3. Should not install microwave sensor opposite to fluorescent light 6.