Best Aftermarket Blind Spot Monitoring System

Peter | 25-12-2025

With so many Best Aftermarket Blind Spot Monitoring System brands on the market – from big names like EASYGUARD,BlueDex,Wilove,Riloer,Brandmotion,PDZGZ to smaller companies – finding the right product can be a real challenge. But we’re here to make your search easier.

We carefully researched and tested a vast range of Best Aftermarket Blind Spot Monitoring System to help you discover the top contenders that match different needs and preferences. Altogether, we spent over 100 hours evaluating numerous products first-hand.

Our #1 best Best Aftermarket Blind Spot Monitoring System is EASYGUARD Best Aftermarket Blind Spot Monitoring System, based on its stellar performance across all our tests. Below you’ll find more of our top-rated recommendations for great Best Aftermarket Blind Spot Monitoring System options currently available. Make sure to check out our buying guide too – it’s full of expert advice for choosing a Best Aftermarket Blind Spot Monitoring System tailored to exactly what you’re looking for. With our help guiding your decision, finding your perfect fit will be a breeze!

Editor's Choice
EASYGUARD EBS001 car Blind spot Monitor System Area Detection System Blind spot sensors for Cars
EASYGUARD EBS001 car Blind spot Monitor System Area Detection System Blind spot sensors for Cars
Premium Pick
BlueDex Universal Blind Spot Monitoring Assistant DC12V Car Lane Changing Warning 24Ghz Millimeter
BlueDex Universal Blind Spot Monitoring Assistant DC12V Car Lane Changing Warning 24Ghz Millimeter
Budget Pick
Car Blind Spot Monitoring System, 12V Car Blindspot Sensors Lane Change Reminding Driving Assistance
Car Blind Spot Monitoring System, 12V Car Blindspot Sensors Lane Change Reminding Driving Assistance

Top 10 Best Aftermarket Blind Spot Monitoring System

We researched and compared the top products in the Best Aftermarket Blind Spot Monitoring System category to provide you with these recommendations.

1. EASYGUARD EBS001 car Blind spot Monitor System Area Detection System Blind spot sensors for Cars

EASYGUARD EBS001 car Blind spot Monitor System Area Detection System Blind spot sensors for Cars
9.8

Easyguard

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  • This blind spot detection system is a vehicle assistance device that helps you safely changing the lane during driving & improve driving safety. The LED indicator will alert you when there is a moving object into the vehicle blind area, so that the you can be caution when lane changing to avoid the possibility of traffic accident & improve driving safety.
  • The blind spot monitoring system can monitor the closing objects in the neighbor lane within a range of 6-12 meters with speed gap over 0.5m/second. When the moving object enters the blind area, the LED light will be flash to alert the driver.
  • If the steering is turned on, the system works in lane change assistant mode & the LED light will flash rapidly and the buzzer beeps three times to alert the driver being careful to change a lane.
  • With 2pcs 24GHz microwave sensor, probe the rear side of the vehicle for moving objects into the blind area of the detection zone.
  • IMPORTANT: Can install on cars with a plastic bumper only, not work with vehicles with a metal bumper as metal bumper will interference with the radar sensor. This item fits for most DC12v sedan, compact, SUV, MPVs, pickup etc and professional audio installer installation is required.

2. BlueDex Universal Blind Spot Monitoring Assistant DC12V Car Lane Changing Warning 24Ghz Millimeter

BlueDex Universal Blind Spot Monitoring Assistant DC12V Car Lane Changing Warning 24Ghz Millimeter
9.5

Bluedex

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  • Car Blind spot detection system makes your driving safer by detecting vehicles approaching from the side or rear blind spots. Poor visibility in the dark, rain, or snow can also be monitored
  • The system host is integrated in two 24Ghz millimeter wave detection sensors, the detection range is 1-32.8ft (0.3-10m) , when the car approaches (objects in relative motion) your car from the side or rear and enters this blind detection zone, the LED light will flash
  • Blind spot detection sensor detects the vehicle approaching alert mode: 1. When the turn signal is off, the LED will light up; 2. When the turn signal (left or right) is on, the LED (left or right) will flash and the buzzer will sound 3 times; 3. When the double flash warning light is on, the LED (left or right) will flash, and the buzzer will sound 3 times
  • Note! The sensor cannot penetrate metal! Please be installed by professional, read the manual carefully before installation (Sensors mounting position, height, angle and wiring guidance)
  • Package Content : Microwave sensor x2; LED light x2; LED lights connection cable x2; Main wire harness with buzzer x1; Microwave sensor connection cable x1; Silicon glue x1; 2x L Brackets, 6x Self-tapping screws(Choose the glue or bracket accessory (included), Cable zip ties; Bevel protractor x1; Installation manual x1

3. Car Blind Spot Monitoring System, 12V Car Blindspot Sensors Lane Change Reminding Driving Assistance

  • There is a blind spot at the rear of the vehicle, which can easily endanger driving safety. When you install the BSM in a cute car, no matter day, night, or even in heavy snow, as long as there are moving objects popping out of the rear of the vehicle, when the LED lights are on or flashing, you can get an alarm. The sound of the buzzer allows the driver to remain vigilant when changing lanes to avoid side collisions.
  • The system is a vehicle auxiliary device that can help the driver to safely change lanes during driving. With the help of 58KHZ ultrasonic sensors, it detects whether there are moving objects on the side/back of the vehicle into the blind spot of the detection area, so as to avoid traffic accidents and improve driving safety.
  • The system can monitor closed objects in adjacent lanes within a range of 0-5 meters. When a moving object enters the blind zone, the LED indicator will flash to warn the driver.
  • When you are ready to get out of the car, please open the door, if someone moves backwards, an accurate warning will be issued.
  • Suitable for most DC12v cars, SUVs, MPVs, etc. Professional installation is recommended.

4. Riloer Blind Spot Car Mirror Sensor System Car Blind Area Detection System Lane Change Reminding for

  • quality Material: The BSM radar monitoring detection kit is made of quality plastic material, waterproof , wear-resistant and sturdy, not easy to damage, and has a long service life.
  • Ultrasonic Blind Spot Monitoring System: There are blind spots on the side or rear of the vehicle, which may endanger driving . The ultrasonic blind spot monitoring system is a vehicle auxiliary device that detects whether there is a moving object on the side/rear of the vehicle entering the blind spot of the detection area, which can help the driver. Change lanes safely while driving.
  • Reversing Mode Function: When the vehicle is reversing, the reversing radar system is turned on, and an obstacle is found within the detection range set by the ultrasonic sensor, and a sound reminder is issued.
  • Improve Driving : The blind spot monitoring system will be automatically activated when the vehicle starts. When a vehicle is approached within the detection range of the ultrasonic sensor, the LED will light up to remind you. The possibility of a side collision accident increases driving .
  • Application: The radar monitoring detection kit is suitable for most cars, Ss, MPVs, etc.

5. Brandmotion Radar Blind Spot System with Cross Traffic Detection RDBS-1600 | Seamless Integration |

Brandmotion Radar Blind Spot System with Cross Traffic Detection RDBS-1600 | Seamless Integration |
8.7

Brandmotion

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  • NO BLIND SPOTS: Too many close calls? Brandmotions Radar Blind Spot System keeps you safe while on the road. Upgrade your ride and let it warn you of vehicles or objects that are too close on the highway, while turning, changing lanes, and backing up.
  • CROSS TRAFFIC DETECTION: Cant see past the car next to you? When in reverse the advanced system changes the direction of the radar sensor and an audible tone alerts and the light illuminates to let you know which side the vehicle is approaching from.
  • LANE CHANGE ASSIST: Easier to see than outside mirror signals, the system provides near OEM accuracy and quality. Monitors the next lane without triggering warnings for vehicles one lane over; senses high approaching speeds and motorcycles to semis.
  • ALERTS: Indicator lights are activated with objects moving as slow as 15 mph and can be seen even in the sunlight. The lights and audible alert chimes while in reverse or using the turn signal. The system ignores stationary objects and while the vehicle is at idle.
  • TRUSTED BRAND: Brandmotion makes premium automotive retrofit products in Detroit, using the latest technology to provide high performing solutions that blend seamlessly with the vehicle regardless of age. We offer US based support and a 2 year warranty.

6. PDZGZ 6.25inch CAR Side View Blind Area System,Left and Right Blind spot Camera Driving Recorder BSD

  • Hide menu: You can click on the bottom left corner of the screen to turn off and turn on the status of the sound, or go to the warning settings in the system settings to turn on and turn off the sound. You can click on the bottom right corner of the screen to go to Device Settings, Image Shift, Clock Backlight, Warning Area Settings..
  • The high-definition touch screen is equipped with BSD flagship CPU, which adds effective driving warnings and pedestrian warnings. Significantly improving driving safety in complex traffic environments.
  • The all aluminum alloy body design is lightweight and fashionable, enhancing the high-end functionality and appearance of the product, and the heat dissipation function has also been significantly improved; The configuration of the magnetic suction fixed bracket is simple and convenient.
  • Full screen touch: convenient to use, high-end and atmospheric; 6.25 "single screen dual channel display; 5.0" single screen single channel display; And it can freely click on the screen to switch display;.
  • Vehicle mounted high-definition blind spot camera monitoring system, high-performance CPU+full screen touch+perfect integration of driving records and parking monitoring; Beautiful, practical, integrated with monitoring and recording.

7. Blind spot Detection Monitoring System kit, bsd Sensor 12v, All Vehicles Alert Backup Assist

Blind spot Detection Monitoring System kit, bsd Sensor 12v, All Vehicles Alert Backup Assist
8.3

Astibym

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  • Immediate alerts: light and buzzer provide warnings when vehicle is in blind spot detection to enhance driving system with audible alert
  • Easy installation: independent system requires no connection for discreet mounting both back bumper sides ensuring seamless setup and space efficiency.
  • Blind spot monitoring: detection technology utilizes transmitting and multiple receiving sensors for monitoring of surrounding blind spots.
  • All weather durability: ip67 optimal performance in various weather conditions like rain fog and night driving for lasting durability.
  • Multi function system: alert system provides blind spot detection lane change warning rear traffic alerts and door opening reminders for comprehensive driving

8. Riloer BSD Radar Monitoring Detection Kit Car Blind Spot Monitoring System Ultrasonic Blind Spot

  • Material: The BSD radar monitoring detection kit is made of good quality PVC and metal materials, which are wear-resistant and sturdy, not easy to be damaged, and have a long service life.
  • Ultrasonic Blind Spot Monitoring System: There are blind spots on the side or rear of the vehicle, which may endanger driving . The ultrasonic blind spot monitoring system is a vehicle auxiliary device that detects whether there is a moving object on the side/rear of the vehicle entering the blind spot of the detection area, which can help the driver. Change lanes safely while driving.
  • Detection Range: The detection distance is 0-3.5m (0-137.8inch), and the maximum distance can be customized to 5m (196.85inch), and the detection range is wide.
  • Improve Driving: The blind spot monitoring system will be automatically activated when the vehicle starts. When a vehicle is approached within the detection range of the ultrasonic sensor, the LED will light up to remind you. The possibility of a side collision accident increases driving .
  • Application: The radar monitoring detection kit is suitable for most cars, Ss, MPVs, etc.

9. Blind Spot Monitoring System, 77 GHz Millimeter Wave Radar 12V Universal Car Truck Blind Spot

  • Warning Alarm FunctionThis Blind Area Detection System uses the most sensitive 77GHZ millimeter-wave radar Sensor, no matter it's night time, in rain, in fog or even in the snow, whenever there is a moving object pop into the rear of the vehicle, with the aid of LED blinking, buzzer sound to remind the driver.
  • Detecting Distance and Trigger ConditionWhen the speed of our car exceeds 10KM/H, and neighboring lane vehicles on both sides of the car into the 11.5*32.8 ft alarm area, it will start the alarm. When relative collision time between the target vehicle and our vehicle is less than 5 seconds, the LCA function is activated, Maximum warning distance of LCA is 164ft, When reversing, it monitors the situation of transverse incoming vehicles around 3.5*2m with the radar sensor as the center point.
  • Warning Alarm FunctionWith radar detectors, no matter it's night time, in rain, in fog or even in the snow, whenever there is a moving object pop into the rear of the vehicle, with the aid of LED blinking, buzzer sound to remind the driver.
  • 6 Assistance FeaturesBSD - Blind Spot Detection; LCA - Lane change assistance; DOW - Open door warning; RCTA - Rear Cross Traffic Alert; AOA - Active overtaking warning; Follow-up warning for B-pillar driving at the same speed; Help drivers avoid the side crash accident more effectively.
  • Distinguishing Fixed or Moving Object AlarmsFixed objects will not alarm, but moving cars, pedestrians, bicycles, motorcycles, etc. will alarm when detected.

10. Blind Spot Convex Car Mirror - Rearview Accessories for Car Interior - Automotive Blindspot Mirrors

Blind Spot Convex Car Mirror - Rearview Accessories for Car Interior - Automotive Blindspot Mirrors
7.7

Utopicar

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  • ENGINEERED DESIGN: Dont just use any fisheye mirror for your rear view. Utopicar offers you not just a typical car mirror (blindspot mirror), but one that is engineered to cover a wider area. It reflects the image 3x larger for an easier rear view.
  • OUTDOOR-RATED ADHESIVE: You know how important a blindspot mirror for car is. Our product comes with an outdoor-rated adhesive base so your convex mirror car won't fall during cold weather, car wash, or exposure to salt water.
  • FRAMELESS DESIGN: It can be distracting looking at a mirror with another mirror on it. Utopicar addresses that concern by following a frameless design to make your side view mirror (blindspot) look and fit like an original part of the car.
  • SAFETY FIRST: Utopicar promotes safe driving through its cutting-edge blind spot mirror for car. Feel more confident in changing lanes with the better visibility this product offers. Its a cheaper yet efficient alternative to a blind spot monitor.
  • IDEAL CAR SIZE: This 3 x 1.8 convex rear view mirror is ideal for your sedan or regular sized 4-door car. But if you want a blind spot mirror for truck, Utopicar also offers that.

Peter

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