Universal 24Ghz Millimeter Wave Radar 25M BSD Blind Spot Detection System Safe Driving  Features:  This system product can warn the dangerous targets in the adjacent lanes. The unique ability of 24Ghz millimeter radar to penetrate smoke, fog and dust can realize all-weather and all-time application, detect the objects in the signal area in real time, and calculate the speed, angle and relative displacement of objects at the same time. It can detect the target within 25M(82.02ft) at the farthest, and finally output the alarm signal, which includes the first-level alarm and the second-level alarm.  The system is a vehicle auxiliary device that can help the driver to safely change lanes while driving.  During driving, when the side and rear vehicles are in danger of colliding with my car, the warning light will light up to remind the driver. If the left/right turn signal is turned on, it will be accompanied by an audible warning.  The blind spot detection starts when the car starts. When you open the door, if there are pedestrians, cars and motorcycles on the side, it will be detected and accurately alarmed.  The blind spot detection system can distinguish between stationary objects and moving objects. Stationary objects do not alarm. Pedestrians and vehicles in a driving state will sound an alarm when they are detected.  When waiting for traffic lights: After parking, the car behind is still, and the blind spot detection system does not alarm.  Normal driving: When the car behind is slower than us, there is no danger of collision and there is no warning. Similarly, when we overtake, the speed is faster than the car behind and there is no warning.  What You Get: 24Ghz millimeter wave radar x2, Main wiring harness x1, LED lamp extension cable x2, LED lamp x2, Buzzer x1, Other accessories x1, User manual x1.    Specifications:  Applicable conditions: Universal (There must be no metal objects in front of the 2 radar signals to block the radar)  Operating frequency band: 24Ghz  Operating voltage: 10.6V-16V  Power: 5W  Working current: Less than 200mA  Working temperature: -40& 8451; to 85& 8451;/-40& 8457; to 185& 8457;  Waterproof level: IP67  Detection range accuracy: ±3cm  Detection range: Lateral distance : 0.5m-3m/1.64ft-9.84ft  Rear side distance: 0.5m-25m/1.64ft-82.02ft (MAX)  Alarm range: 0.5m-25m/1.64ft-82.02ft  System alarm accuracy: >95%  Alarm method: Method 1: LED light turn on.  Method 2: LED flash and buzzer sound.  It is recommended that the installation be carried out by professionals. The installation angle of radar will affect the detection distance and effect. Please install it strictly according to the instructions.  Note:   Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 10-30mm.