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Parking sensors have long since ceased to be a trademark for luxury class vehicles. On the one hand, there are now a large number of brands and manufacturers. On the other hand, you can equip virtually any car with a useful parking sensors with the help of a retrofit parking sensors set.

The most common models are those with a visual display and an acoustic signal that sounds an alarm when the distance is too small.

We have compared various tests for you. Find the best parking sensors for your purposes in our comparison!

Parking Sensors Best Choice

Best choice

STKR Concepts Adjustable Garage Parking Sensor Aid

The STKR Garage Parking Sensor mounts easily and quickly to the wall, workbench, shelf, or any surface in front of your vehicle. There is no longer a need to dangle from the ceiling a stringed tennis ball or mount potentially harmful laser devices. It also eliminates the need to clutter the garage floor with parking blocks or other trip hazards.

5,0 Rating
Easy install
Safely and accurately park your car in tight garage spaces
Uses ultrasonic, range-finding technology
Easy to change park location
With walkway lighting

How To Choose Parking Sensors?

Parking Sensors for your car

Best 5 Parking Sensors


STKR Concepts Adjustable Garage Parking Sensor Aid

  • Adjustable between 6 inches and 6 feet
  • Improved battery life

4,9 Rating

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Frostory Car Reverse Backup Parking Sensor Radar System

  • Detection Distance:30~150CM
  • Rated working voltage:10V~16V DC

4,9 Rating

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ZONETECH Car Reverse Backup Radar System

  • With 4 Ultrasonic Sensors
  • With LED Display

4,8 Rating

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Tiemahun LED Parking Sensors

  • Alarm Distance: 30~150CM, Display distance: 30~250CM
  • Rain proof, operating temperature:-40 ~ +80. Work in almost any weather

4,5 Rating

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KKmoon Front and Rear Car Reverse Backup Radar System

  • Ultrasonic frequency: 40KHz
  • Dual-core independent digital LCD display

4,5 Rating

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We have tested the parking sensors and selected the best products for you.

Type of Parking Sensors Systems

  • Ultrasound-based systems

Sensors in the bumpers are the hallmark of ultrasonic-based parking aids. These small, circular units, usually painted the same color as the car, are hardly noticeable. The distinction between two-, four- and six-channel systems is not related to the parking sensors themselves, but to the number of groups installed in the bumpers. This means nothing other than that in a four-channel system, for example, there are four parking sensors in each bumper. Ultrasonic sensors transmit and receive the signals and pass the data obtained from them to a control unit. This calculates the distance to the obstacle based on the wave propagation time.

  • Radar-based systems

In the so-called short-range millimeter-wave radar, radar signals replace ultrasound. It works more accurately than ultrasonic devices. Parking sensor tests showed that radar-based reversing detectors respond to obstacles without much loss of time, even when the vehicle is moving fast in reverse gear.

  • Systems with a rearview camera

With a rearview camera, parking becomes particularly convenient. A rearview camera also makes parking easier. It is mounted at the rear of the vehicle and films the surroundings. Rear-view cameras are activated when reverse gear is engaged. Depending on the system, different colored lines show the area behind the car or the path resulting from the steering angle.

The advantage of the rearview camera is primarily that they detect even deeper obstacles that parking sensors no longer scan. Retrofitting the rearview camera is relatively simple. In many models, the screen is simply attached to the windshield with suction cups. However, installing a fixed display can be very difficult or impossible, depending on the model and vehicle.

  • Surround View Systems

An extension of the systems with a rearview camera is the Surround View System. Manufacturers such as BMW, VW, or Lexus offer it. This category of parking sensors may well be called the royal class among parking sensors. The advantage of an electronic parking sensor lies in the use of several cameras. In addition to the rear-view camera, wide-angle cameras are mounted on the front of the car and under the exterior mirrors. After the images have been digitally rectified, the driver receives them on a screen in the vehicle. BMW supplements its system with two additional cameras in the fender that show cross-traffic at blind spots.

  • Self-steering systems

In self-steering systems, the technology takes care of parking. It is an active parking sensor plus an electric motor as well as electromechanical power steering and a measuring system aligned parallel to the road. Some self-steering systems also have a rear-view camera. Retrofitting on one’s own is currently not possible.

How do parking sensors work?

Especially when parking in reverse, many drivers have the problem that they cannot always correctly estimate the length of their vehicle. In addition, the field of vision is restricted by the rear of the car. Other vehicle dimensions are thus difficult to see to the rear.

If you don’t want to or can’t park every time, you increasingly have the option of retrofitting your car with inexpensive models of parking aids. In some high- and mid-range cars, parking sensors are already installed as standard.

The parking sensor lends you a few extra eyes to the rear: if you get too close to an obstacle with the rear of your vehicle, a signal usually sounds to warn you. It warns you that you are getting too close to the vehicle behind you or that the distance is too small. This can prevent a collision and annoying damage.

The distance between your rear and the obstacle is read out by sensors on the car. A system with ultrasound on the parking sensor usually measures the distance.

  • To ensure that the parking sensor is not always triggered when you are tailgated in moving traffic, the devices are usually only activated when reverse gear is engaged.
  • The parking sensors should always be installed across the entire width of the vehicle.

The sensors are attached to the rear of the vehicle – the bumper, the license plate, or the trailer hitch. In many cases, holes have to be drilled for this. If you do not dare to do this yourself, you can also have the parking aid installed, according to the test. The sensors are connected to a warning and reading device in the vehicle cabin via radio or cable.
You can also install the parking sensor at the front of the car. But the view to the front is usually quite good for the driver, while the view to the rear is rather limited. Therefore, according to the test, it is best to mount the parking sensor at the rear of the vehicle.

David Muench (Carnes Mechanical)

David Muench (Carnes Mechanical)

Hey, I’m David. I’ve worked in a cars store for 6 years. I write reviews and guides, helping people to choose the most suitable technicals and best product for them. I’m happy to finally share my knowledge of the industry here, on CarnesMechanical.

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