Home / Automotive Reviews / Best Blind Spot Detection System (Review & Guide) 2020

Best Blind Spot Detection System (Review & Guide) 2020

Our modern cars have been improving every year with new safety features that alert the driver and protect us in accident situations, .e.g., airbags, seat belts, even car seats, and energy absorption technology. There are many enhancements that we take for granted that help prevents accidents in the first place, .e.g., turn signals, side mirrors, backup cameras. Adaptive cruise control, self-parking, and collision detection systems are beginning to be offered. Keep reading to learn what is the best blind spot detection system.

Features such as blind spot detection systems exist in many new model vehicles and are being enhanced with new features every year. But older cars lack these safety features, placing the drivers at a disadvantage. However, car owners of older vehicles are finding aftermarket solutions to enhance their safety, improve reaction time, and prevent accidents. There is a wide range of blind spot monitoring products available to detect vehicles with a variety of features available, including visual and audible warnings. These systems utilize radar based technology.

Top 10 Best Blind Spot Detection System On The Market

RankingsNamePrice and More Details
BrandMotion RDBS1500Click Here
Accele BSS200Click Here
Rydeen BSS1Click Here
EWAY UniversalClick Here
CarBest UltrasonicClick Here

Our search for blind spot detection systems has turned up the following systems that are currently rated in the top 10 categories based on features, pricing, and customer feedback. They all utilize the cigarette lighter to provide power. Most require mounting the sensors on plastic bumpers.

1. BrandMotion RDBS1500 Radar Blind Spot System (Best Blind Spot Detection System)

BrandMotion RDBS-1500 Radar Blind Spot System (Best Blind Spot Detection System)

Key Features

  • Day and night indicators are bright, no exposed wires
  • The BrandMotion RDBS-1500 system activates when speeds are greater than 15mph
  • Rear distance observation increased by 15 feet to 40 feet
  • Warning lights and audible tone alerts driver upon turn signal activation
  • Editor’s rating of 4.2 out of 5

The brand motion blind spot detector has a range of up to 40 feet, can detect plastic bumpers, and provides both an audible tone as well as visual indication. There are day and night lights. The daylight visual indicators are bright and easily seen. The monitoring system uses the CAN data to get the automobile speed for better accuracy. Also, the technology is helpful when you are backing up in a parking lot that is busy. Overall this product has excellent accuracy.

The finish on this system blends in with most vehicle interior finishes. The system does not activate unless you are traveling more than 15 miles per hour. According to reviews, installing this system is easy. However, professional installation can be arranged. Seventy percent of consumers rated this monitoring system four stars or better. Professional installation is nor mandatory, if you have the capability you can do the installation yourself.

  • Detection works well with limited false detections
  • The BrandMotion RDBS-1500 system works great during lane changes
  • Cross-traffic system works extremely well
  • Compares well to standard OEM blind spot detectors
  • Buyers found this to be an OEM quality system
  • Need expert installation, not a DYI project
  • Below 15mph detection does not work, while cross-traffic does

2. Accele BSS200 Blind-Spot With Sound

Accele BSS200 Blind Spot Detection System Accele warning indicators

Key Features

  • Blind spot detection – OEM style
  • Two LED warning system indicators
  • Audible warning system initiates once turn signal is activated
  • Configure to run only when turn signal activated or all of the time
  • Editor’s rating of 3.9 out of 5

The Accele BSS200 blind spot sensor kit comes with two sensors and is an affordable solution for drivers looking for a system that is relatively easy to install. There are two LED indicators to mount on the dash for visible indication in addition to audible warning sounds. Also, the Accele electronics system can be configured to operate only when the turn signal is activated or work all of the time. This product is an OEM system that comes with 3M adhesive installation for the warning indicators.

Some consumers, however, found the system difficult to install due to unclear instructions. Also, it brings an extra extension harness if you need it for installation. The sensors have a paintable surface and can be painted to match the color of your bumper. However, they can only be mounted on plastic bumpers. There were no current customer reviews available for this system to provide feedback. Also, remember that the sensor that comes with this product is only compatible with plastic bumpers.

  • Works almost as well as OEM systems
  • Improved rear blind spot visibility immensely
  • Easy to install on most vehicles
  • Most buyers very satisfied with the way the system works
  • Works well on highways, often activates in suburban areas
  • Activates on stationary items as well as moving objects
  • Alarms initiate nonstop, and LEDs activate continuously

3. Rydeen BSS1 Blind Spot Detection System

Rydeen BSS1 Blind Spot Detection System Rython Alarms technology

Key Features

  • Two radar pucks, LED and Buzzer system for audible alerts
  • Highly accurate microwave digital radar
  • LED indicates visual alerts with two color options
  • Speed Sensing GPS antenna
  • Editor’s rating of 4.8 out of 5

The Rydeen BSS1 blind spot system comes with LED indicators that offer two distinct color options, a buzzer speaker option for audible alerts. There is also a GPS antenna that is used for sensing speeds. There are two radar pucks, one for each side of your car. The warning indicators can be installed with a 3m adhesive that comes with this monitoring system.

The system also alerts you to cross traffic when you are backing up. The system, like many blind spot systems, does not work on metal bumpers. There is no drilling required during installation. There were no current customer reviews available for this system. However, there are some concerns with regards to the false alarms and the detection capabilities of this product.

  • Radar detects objects moving into your blind spot
  • The system provides an early warning compared to sonar
  • Turn signal activates the audible warning system for close vehicles
  • Very satisfied with the ease of installation, no problems at all
  • Limited number of false alerts, always check your blind spot
  • A relative stationary vehicle sitting in your blind spot will not trigger system
  • Cannot be installed on cars with metal bumpers

4. EWAY Universal Car Radar Blind Spot Detectors

EWAY Universal Car Radar Blind Spot Detectors Systems technology

Key Features

  • Microwave radar sensor for side and rear view safety
  • Detects objects up to 50 feet behind the vehicle
  • Radar detectors work in fog, snow, rain
  • Lane change assistant warns drivers of side objects
  • Editor’s rating of 4.0 out of 5

The EWAY universal car radar blind spot detectors work good when monitoring vehicles from ten to fifty feet from your vehicle. There were no customer reviews available for this system. The system uses a combination of blinking LEDs and buzzer sound to warn drivers of an approaching car. The buzzer sound level cannot be adjusted. We like the amount of range this product has for detecting objects.

There are four assistance features standard on this device – Open door warning, Blind Spot Detection, Lane Change Assistance, , and Rear Cross Traffic. Customers with metal bumpers will find that this system does not work well with these types of bumpers. Plastic bumpers are preferred for installation. Also, It comes with two different installation options for the LED warning indicator which are 3m adhesive or hole drilling.

  • Probes side and rear areas of the vehicle
  • Detects objects ten feet to the side
  • Works in all kinds of weather
  • Assist drivers when changing lanes and detects cross traffic
  • Detects objects up to 50 feet behind the vehicle
  • Does not work with metal bumpers
  • The audible buzzer system volume cannot be adjusted
  • Many false alarms and does not stay lit if something is in the blind spot

5. CarBest Ultrasonic Blind Spot Detection System (Motion Sensors Included)

CarBest Ultrasonic Blind Spot Detection System Best Pricing

Key Features

  • Provides blind spot assistance and back up support
  • Includes high-speed frequency sensors for left & right of the vehicle
  • Buzzer for audible warning and lights illuminate for warning to the driver
  • The system activates when the turn signal is engaged
  • Editor’s rating 4 out of 5

The CarBest ultrasonic blind spot detection system comes with two sensors. There are two LED indicators to mount on the dash for visible indication in addition to the audible buzzer. The system only works when you’re your turn signal is activated. Some consumers, including professional installers, found the system difficult to install due to unclear instructions. However, it has a good 3 meters of detection range with an 80 degree angle.

In addition, several customers reported that one or more of the sensors quit working. The sensors can be painted so that they can match the color of your bumper. Only 19% of consumers rated this blind spot detector four stars or better. It is always good to have visual warnings helping us make better decisions when driving. Also, the product comes with 2 BSD sensor that are industry standard when it comes to accuracy and detection capability.

  • Buyers indicate this model is easy to install
  • Audible sounds for vehicles within 3 meters
  • Detects and warns of vehicles going the same speed
  • Warns of pedestrians or vehicles while reversing
  • 3m side and 10m rear view monitoring
  • Cannot be installed on all vehicles, check with vender
  • May provide false alarms on some vehicles

6. Crimestopper Universal Blind Spot Detectors (Unique Sensor Technology)

Crimestopper Universal Blind Spot Detection System

Key Features

  • Includes four sensors, 2 for front and back
  • Activates once turn signal is engaged
  • Alerts are LED and audible when a vehicle enters your blind spot
  • Blind spot detection range is 3 to 10 feet
  • Editor’s rating of 3.9 out of 5 by one buyer

The Crimestopper universal system has four sensors, two each for the front and rear bumpers. All four vehicle corners are covered and can provide driver assistance when changing lanes. Each sensor has a detection range of three to ten feet. They are waterproof. The system activates as soon as the turn signal is activated, providing protection and warnings if there is an automobile in your blind spot.

If an automobile is detected, the system alerts the driver by an audible sound, which can be adjusted, as well as by LED indicators. The sensors can also be painted to match the color of the bumper. Consumers indicate the system is easy to install but requires some drilling. There were no customer reviews available for this system.

  • The system works great along the highway
  • Alerts are both visual and audible technology
  • The audible sound level can be adjusted
  • The buzzer can be installed inside the dash with sound levels increased
  • Only activates once turn signal is engaged
  • Too many false alerts driven by back roads and heavy rain
  • Does not use radar for detection

7. STEEL MATE Universal Blind Spot Detection System

STEEL MATE Universal Blind Spot Detection System

Key Features

  • With turn signal activated, the system indicates an approaching vehicle
  • If the turn-signal is not activated a warning will be flashed
  • System is functional when hazard warning lights are activated
  • The system detects objects other than a vehicle
  • Editor’s rating of 3.7 out of 5

The STEEL Mate Universal is one of the more expensive units available for blind spot protection. There are two sensors to be mounted on the rear bumper. If a vehicle triggers the system to issue an alarm, an LED and a warning sound will be emitted. Also, we like the warning indicators design which looks pretty sleek.  The BSD lane change assistant works with cars or objects moving over 5 kilometers per hour.

A warning is also provided if a vehicle enters the detection area with the turn signals off. When the turn signals are on, both a warning sound and flash will warn the driver that there is a vehicle in the detection area. There were no customer reviews available for this system. According to manufacturer the monitoring system works good under snow weather conditions. We like the warning indicator lights on this model.

  • Good quality system but needs better documentation for users
  • Warnings indicated independent of turn signal position
  • The system operates with hazard signal lights operating
  • This system detects pedestrians and other moving objects around the vehicle
  • The sensor technology detects objects within five meters
  • Does not detect a vehicle in blind spot traveling at the same speed
  • Poor documentation provided with the system

8. Five Bananas Blind Spot Monitoring System

Five Bananas Blind Spot Monitoring System

Key Features

  • 24GHz microwave sensor for rear and side of the vehicle
  • Monitors closing vehicles on the inside lane from 6-12 meters
  • LED lights flash and buzzer beeps to alert the driver
  • Detailed instructions in English are included
  • Editor’s rating of 3.9 out of 5

The Five Bananas blind spot detection system works good for monitoring the rear side from one foot to 33 feet from your car. There are two sensors, two LEDs and a buzzer shipped with the system. With a lateral range of four meters, and rear side range of 10 meters this product is among the top monitoring systems available. Also, it comes with a microwave sensor, and a extension harness.

The system is shipped with English instructions, double sided stickers to mount the various components. An audible alarm, as well as the appropriate LED, illuminates whenever a vehicle is in the detection zone. Forty-three percent of drivers rated this system with four stars or better. All the features that this product offers including the 24Ghz sensor are worth every penny.

  • Good product works as expected
  • Relatively easy to install with detailed instructions
  • Works well after over 30 days of use
  • Use a professional to install the system if not comfortable DIY
  • Provides alerts for objects and vehicles from 6 to 12 meters
  • Some buyers found the system to difficult to install
  • Only worked for a short time after purchase

9. GreenYi Blind Spot System and Camera

GreenYi Blind Spot System and Camera

Key Features

  • Blind spot camera, high definition screen – 800*480
  • Anti-glare, works with NTSC and PAL video formats
  • Easy installation, the power is provided by cigarette lighter outlet
  • No drilling, adhesive pad provided
  • Editor’s rating of 3.5 out of 5

The Green Yi HD Camera provides audio and visual, and up to 16 feet of clear night vision maximizes the review radius. The screen adheres to your dashboard, provides 5 inches of screen size, anti-glare, and works with several video formats. We like this amazing side view camera that can show a mirror image on a monitor, and the installation does not require any drilling. You can use the cigarette socket as a power source.

The screen can be configured to provide a blind spot mirror image as well as a non-mirror image to enhance your safety. It is easy to install. However, there seem to be wires everywhere. The monitor has anti-glare properties. Fifty-eight percent of drivers rated the Green Yi Camera blind spot sensor system four stars or better. Also, the monitor can be fixed on the windshield or the dashboard of the car.

  • Easy installation, 15 minutes on each side
  • HD screen provides a detailed view, however, must be installed near the driver
  • Works well on Mazda, BMW, Toyota and has a great picture
  • Installed on side mirrors of RV, camera and screen work great
  • Good price and quality product to prevent vehicle collision
  • Great technology, but difficult to install for some buyers
  • Some buyers found moisture damage to the camera

10. Audiovox PSD-100 Blind Spot Detection System

Audiovox PSD-100 Blind Spot Detection System

Key Features

  • Two sensors alert on obstacles six feet from bumper
  • Install system as a front or rear sensor system
  • Connectors at the bumper are waterproof
  • The system can be upgraded to a four-sensor system
  • Editor’s rating of 4.4 out of 5

The Audiovox PSD-100 has front and back sensors, providing a detection radius of 6 feet. The connections are waterproof, and the system can learn various mounting situations and save this information in flash memory. Many drivers would consider the radius as being too short and may also find it difficult to install.

Also, the Audiovox systems provide a buzzing sound as well as LED indicators to indicate something is in your blind spot. Car owners can purchase additional sensors to compliment the two sensors that are shipped with the system. There were no customer reviews available for this system.

  • Some buyers found the system to be easy to install
  • Very handy when used on front bumper while parking
  • Complements rear back up camera when used on the front bumper
  • Great blind spot detection system at a good price
  • Buyers can install the sensors on the rear or front bumper or upgrade to 4 sensors
  • Some buyers found it difficult to install; the system alerted all of the time
  • This is a learning type system; buyers found it difficult to fine-tune

Blind Spot Detection System Buying Guide

New cars are arriving with all of the latest features. However, older model cars lack features such as blind spot detection. There are many systems and products available on the market which can be installed professionally as well as by DYI. Many drivers of older model vehicles can now add these devices to their cars with little expense. There are features and capabilities that everyone should consider.

What to look for in a blind spot system

Many systems do not work on cars with steel bumpers. Other considerations include ease of installation, range of detection, indicators, false alarms, adjusting sound levels. Most systems include two bumper sensors, while a few offer four sensors to cover all four corners. The following provides a little more detail.

Easy installation and setup

Ease of installation is important whether you intend to install it yourself or hire a professional. Some kits require holes to be drilled and canwire connection to be run, while others require less work using 3m adhesive to secure the sensors and time, which is important for a professional installation. It is important to use waterproof connectors when installing blind spot systems.

Range and detecting distance

Short detection distances provide little warning of nearby vehicles in blind spots. Longer distances of up to 50 feet provide ample warning of cars approaching on either side of your car on a multilane highway. When looking for range capability make sure you understand both the side and rear range.

Type of indicator

Systems may include adjustable audible sound buzzers, LED systems, and even cameras. LED systems provide additional indications, especially in situations where there is noise in or around your vehicle. Usually, the warning indicators are on a round form and they come with 3M adhesive for installation.

Amount of false alarm

Blind spot systems should be evaluated for false alarms caused by your vehicle passing stationary objects at high speeds. Many systems have algorithms to filter out false alarms.

How does a blind spot system work

How a blind spot detection system works
How a blind spot detection system works.

A blind spot system consists of a control box to manage the signals received from the radar sensors, interpret them and make decisions to trigger either audible sounds or LED lights to indicate something is in your blind spot. This feature allows for false triggers at times. Better systems will filter out false triggers.

Different type of systems

The two main type of blind spot systems is those which are installed by the automotive manufacturers as original equipment and aftermarket systems that can be installed on older cars to provide added safety for their drivers.

OEM Systems

Original equipment manufactured is a term given to items that are intended to be offered as standard equipment or upgrades by manufacturers at certain trim levels. Original or OEM blind spot mirror indicators might be available depending on your car model.

Aftermarket Systems

Aftermarket systems are meant to be added to vehicles of older vintage. This would also include custom-designed kits and underglow kits designed to fit many models after they are driven off the dealer’s lot. Make sure you read the instruction manual prior to the installation.


Can you trust a blind spot system?

A blind spot system should be treated as an assist. Some systems will offer many false detections or false triggers, while in specific conditions, some may miss threats from vehicles in your blind spot. Always check rearview mirrors, side mirrors, and look over your shoulder before changing lanes. The range and the blind spot warning sensor play a crucial role.

Do I have to clean the sensors?

Generally, the sensors do not have to be cleaned. However, if your driving in very dusty, muddy, or icy conditions, the material could build up on the sensor making it less accurate and effective. Some aftermarket blind spot detection systems might need some sensor cleaning. Look for a monitoring system design with good detection capabilities, and that does not require constant sensor cleaning.

Wrapping It UP

Blind spot sensor kits can be installed by DYI consumers as well as professionals. They offer a variety of features. e.g., audible and visual LED warnings, as well as cameras. More sophisticated blindspot detection models will filter out false triggers, ensuring higher accuracy levels. Remember to look for 3m adhesive and adjustable sensors for ease of installation.

Most come with audible and visual indicators. However, they do not provide parallel parking assistance, speed detection, or alerts to cross traffic. Never rely on blind spot detectors 100%, always check mirrors and check over your shoulder before making a lane change. Blind spot mirrors are another cheap and less effective solution for blind spot detection in cars.

On our previous blind spot detection systems comparison table that you saw up top, you can choose from the top 5 systems on the market. We recommend reading our best car seats for the infant’s  or babies review. I hope you now know how to choose an aftermarket blind spot monitoring system. Do yourself a favor and get a monitoring system included next time you go out car buying.

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