Parking Sensor Backup Sensors Wireless Parking Sensor Kit

Having a Parking/Backup Sensor System is like having eyes in the front (6 - 8 sensor systems only) and back of your vehicle and can help you avoid costly accidents and injuries.

Our Parking/Backup Sensor System is a perfect parking aid for backing up/reverse parking, street parking, parallel parking, garage parking, and wherever parking in a tight spot ...

We have different Parking/Backup Sensor Systems designed for various types of vehicles. They are especially useful and helpful in SUV's, vans, buses, trucks, RV's, and full size sedans which have poor front (6 or 8 sensor systems only) and rear visibility.

The systems can detect still and moving objects including children and small pets in front (6 or 8 sensor systems only) and rear blind area of your vehicle. Two or four sensors embedded into the front bumper (6 or 8 sensor systems only) and four sensors embedded into the rear bumper detect objects up to 6 - 8 feet from your vehicle.

Your small kids or pets will never again be in danger of getting in the way of your vehicle while you are parking/backing up your vehicle.

You never again have to get someone to watch the rear or front (6 or 8 sensor systems only) of your vehicle while parking.

With our parking/backup sensor system, you won't have to worry about getting too close to the vehicle in front (6 or 8 sensor systems only) and rear of your vehicle while street parking, or scraping them while getting out of a tight parking spot.

The CPU in the main control unit of the Parking/Backup Sensor System determines obstacle distance by measuring the time needed for the ultrasonic wave emitted by a sensor to reach an obstacle and for the sensor to receive the ultrasonic wave reflected from the obstacle. Given the speed of the ultrasonic wave, the CPU can then calculate the distance between the sensor and the obstacle. That is also why some people call Parking Sensor System as Parking Radar because of the similarity in determining obstacle distance.

Our Parking/Backup Sensor system consists of 4 - 8 wide angle sensors - 2 or 4 covering the front of the vehicle (6 or 8 sensor systems only) and 4 covering the rear of the vehicle. The system will warn the driver both audibly and visually (models with display only) if there is an object behind or in front of the vehicle and how far the object is (models with display only).

The beeper alerts the driver by beeping faster when vehicle gets closer to an obstacle while the display (systems with display only) shows the actual distance of an obstacle from the vehicle.

The control unit, visual display, and the two or four front sensors are powered by +12V from ignition, brake light, or ACC depending on different systems (6 or 8 sensor systems only) while the four rear sensors are powered by +12V from backing up light.

Note: Even if you apply the brake, depending on your driving speed, your vehicle will still go for some distance before it comes to a complete stop. To be safe while parking, keep your vehicle speed at about 3 miles per hour.

Our Parking/Backup Sensor Systems can accurately detect still and moving objects such as parking or street curbs, parking lot or garage walls, posts, vehicles, children, toys, pets, ... in front (6 or 8 sensor systems only) or rear of your vehicle while you are parking or backing up.

NO. The two or four front sensors are activated when you start your vehicle (6 or 8 sensor systems only) and the four rear sensors are only activated when you put your vehicle in reverse. Therefore, only the two or four front sensors are working in normal driving (6 or 8 sensor systems only). Even with the two front or four sensors working in normal driving, the system will only consume about 3 - 4 watts of the battery power. This is only about 1/10 to 1/8 of the power consumed by your vehicle's radio or stereo.
Note: for some models, front sensors are activated only when brake is applied and vehicle is put in drive gear. When vehicle's power is turned off, the power to the system is turned off, too.

The control unit, visual display, and the front sensors are powered by +12V from ignition, brake light, or ACC depending on which specific system you have while the rear sensors are powered by +12V from backing up light. When you start your vehicle, or press the brake, the front sensors are activated. When you reverse your vehicle, the rear sensors are activated.

The ultrasonic parking/back up sensors will function in all weather conditions. The working temperature range of the system is -40C to +80C, allowing the system to work well in different seasons and places of the world.
Note: because the system uses ultrasonic wave to detect obstacles, it may give false alert in heavy rain or snow. The surface of sensors must also be kept clean of snow, mud, dirt, and other debris.

As the system uses ultrasonic wave to detect obstacles, it may give false alert in heavy rain or snow. The surface of sensors also needs to be kept clean of snow, mud, dirt, and other debris.

The surface of sensors needs to be kept clean of snow, mud, dirt, and other debris.

More sensors will give you better coverage of a bumper with minimized blind spots.

Please refer to the detailed description of a specific system for more information.

(Note: This question is for the 4-sensor backup system with VFD display only).
No. Although the Control Box of the 4 Rear Sensor Backup System has six sockets for sensors, it does NOT have the needed hardware inside the box for the two front sensors (E & F). Therefore you can not simply buy 2 more sensors and plug them in at the Control Box to get a 6 Sensor Front and Rear Parking Sensor System.
If you want a 6 sensor system, you need to order our 6 Sensor Front and Rear Parking Sensor System.

Currently the wireless parking sensor systems on the market are actually parking sensor systems with a wireless display, that is, there is no wiring between the display and the control unit.
All of the following still need wired connections:
Power supply to the display itself.
Power supply to the main control unit itself.
Connections between all sensors (front and rear) and the control unit.

Please check our online store to see what sensor colors are currently available or in stock for a specific system.

The sensors can be spray painted to match the bumper color of your vehicle.
For best results, spray paint no more than two thin coats (not to be applied with brush or touchup). A coat of lacquer can be applied for metallic look.
It is recommended that you have the sensors professionally painted by an auto body shop.
Note: While a customer may paint sensors to match his vehicle color, please note that sensors painted by customer void the warranty on the sensors.

For best results, spray paint no more than two thin coats (not to be applied with brush or touchup). A coat of lacquer can be applied for metallic look.
It is recommended that you have the sensors professionally painted by an auto body shop.

The sensor color silver will not match a chrome bumper. Spray paint is needed for exact match.

Yes. Please make a note about the color combination you like in the "Comments/Special Shipping Instructions" field of the online order form while placing your order.

Yes, the system can be easily installed by yourself following the DIY installation instructions in the User's Manual that comes with the system. Or you can have it installed by your local auto mechanic/auto electrician/car stereo store.

To have the look of factory installed system, the in-bumper sensors are mounted into the front (6 or 8 sensor systems only) and rear bumpers by drilling holes through the bumpers
Note: You will need a bi-metal drill bit (not included with systems) if drilling through metal bumpers.

Please refer to the User's Manual of each system for detailed wiring and installation instructions.
Note: You can find a link to the User's Manual in each system's detailed description section.

Here is a list of tools you may need and find helpful for your installation:

22mm (7/8") Drill Bit (included with the Kit).
Note: if drilling through metal bumpers, you will need a bi-metal 22mm (7/8") drill bit (not included). You can buy one at you local hardware/tool store.
Drill
Polishing Head or Small File: for polishing the edge of holes drilled
Tape Measure
Marker or Masking Tape: for marking the position of holes to be drilled for the sensors
Screw Driver Set
Pliers
Vinyl Electrical Tape
Voltage and Continuity Tester, or a test light.
Fish Tape or Steel Wire: for threading the sensor wires through small holes or narrow area.

You can expect to be charged at $80 to $160 per hour based on where you live and its labor cost. The installation may take 2-3 hours for a 4-sensor backing up system, and 4-5 hours for a 6 or 8-sensor front and rear system.
You can save the installation cost by installing the system yourself following the DIY installation instructions in the User's Manual that comes with the system.

Yes. To have the look of factory installed systems, our system comes with in-bumper type sensors. The sensors need to be mounted into the front (6 or 8 sensor systems only) and rear bumpers by drilling 22mm (7/8") holes (22mm drill bit included) through the bumpers.
Note: You will need a bi-metal 22mm (7/8") drill bit (not included) if drilling through metal bumpers. You can buy one at you local hardware/tool store.

To prevent system from detecting the ground and giving false alert, the sensors should be mounted between 16" to 32" (0.4m to 0.8m) above ground, 20" (0.5m) is the best.
Horizontally, the sensors should be spaced equally across the bumper if possible or symmetric to the center of the bumper.
For better corner coverage, mount the outer two sensors about 15cm (5.9") from the corner of the bumper if possible.
The sensors also need to be mounted vertically on the bumpers, or to point a few degrees above horizontal line to avoid the system from detecting the ground and giving false alert.
The plastic spacers came with the sensors can be used to adjust the sensors for non-vertical bumpers.
Note: some models come with sensors with wedge-shaped edge for adjusting to non-vertical bumpers.

To prevent system from detecting the ground and giving false alert, the sensors should be mounted between 16" to 32" (0.4m to 0.8m) above ground, 20" (0.5m) is the best.
The sensors also need to be mounted vertically on the bumpers, or to point a few degrees above horizontal line to avoid the system from detecting the ground and giving false alert.
The plastic spacers came with the sensors can be used to adjust the sensors for non-vertical bumpers.
Note: some models come with sensors with wedge-shaped edge for adjusting to non-vertical bumpers.

Don't mount the control box near or under the dash or in the cab of a truck. The control box is designed to be mounted near the rear end of a vehicle to avoid interferences from the engine which may cause false alert such as continuous beeping and 0.0 display.
Also, keep the control box at least 12 inches away from the taillight assembly to avoid interferences from the lights in taillight assembly.
For cars and sedans, this is somewhere on the side wall inside the trunk.
For SUV's, it is somewhere inside the storage for spare tire near the rear end of the vehicle.
For vans, it is somewhere inside the back wall by side window or spare tire storage.
For trucks, this should be somewhere under the lip in truck bed or inside a water-proof plastic box (not included with the system) then secure it to the vehicle.
The location for control box should also be safe, protected, and weatherproof.

To make the installation more flexible with longer sensor cable, you can buy sensor extension cables at our on-line store or extend the sensor cables yourself by cutting the sensor cables in the middle and make the extension with coaxial cable such as RG174, RG188, or RG316, etc.
Please note that using an sensor extension cable on a sensor may cause the sensor to give false alert. Also, keep the total length of the sensor cables under 33 feet or 10 meters to avoid unnecessary signal loss.
Note: While a customer may cut or extend sensor wires or cables for more flexible installations, please note that sensors with wires or cables cut void the warranty on the sensors.

The Control Box needs to be mounted somewhere clean, dry, and protected from moisture and water.
You may want to mount it under lip in truck bed or inside a water-proof plastic box (not included with the system) then secure it to the vehicle.

The mounting base can be removed from the VFD display by unscrewing the small screw covered by the 3M self-adhesive pad on the bottom of the base.

Yes, the sensors will work in both plastic and metal (steel) bumpers. But to drill holes through metal (steel) bumpers, you will need a bi-metal 22mm (7/8") drill bit (not included).

Yes, the metal will get hot. Make sure you use a sharp drill bit to reduce heat building up. Discoloration of the chrome is not a problem from our experience.

Yes, each sensor comes with its own plastic spacer for adjusting it for non-vertical bumpers.
Note: some models come with sensors with wedge-shaped edge for adjusting to non-vertical bumpers. But some models may not come with plastic spacers or sensors with wedge-shaped edge.

The dimensions of the VFD display are: Width x Height x Depth = 2 5/8" x 2 1/8" x 1/2"
3M Self-Adhesive pad on the bottom of the base is included for easy mounting on top of dashboard.

Our Parking / Backup Sensor Systems can be installed by your local auto mechanic/auto electrician/car stereo store. Make sure you choose one who is certified, reputable and experienced in installing parking sensor systems.

You can find a link to the User's Manual (PDF file) for a specific system in the system's detailed description.

If your kit comes with a display, then the beeper is built in the display.

The beeper may beep once (self testing) every time you start your vehicle.
If it beeps even there is no obstacle in front or back of your vehicle, please check the following:

The sensors should be mounted between 16" to 32" (0.4m to 0.8m) above ground, 20" (0.5m) is the best. If the sensors are mounted too low or non-vertical towards the ground (usually caused by a non-vertical bumper), they may detect the ground causing the beeper to sound or give false alert.

As the sensors in each kit are the same type, please try to unplug the sensor in question, and plug a good sensor into the socket of the sensor in question. If you still get the same problem, then the problem is not caused by the sensor. Please try the following:

Make sure the sensors are not detecting the ground by:

Rotating the plastic spacer came with each sensor to adjust the pointing angle of the sensors so they point horizontally, or a few degrees above horizontal line. Note: rotate sensor itself if it has a wedge-shaped edge.
For some models, making sure the eye shape or rectangular shape on the face of the sensors lies horizontally by rotating the sensors themselves.

A faulty sensor may also cause the problem. Test each sensor one at a time by unplugging all other sensors. If you find a faulty sensor, then contact our technical support for help or a replacement.

(Note: this question is for the 6-sensor front and rear parking system with VFD display only).
No. If the beeper sounds every time you apply the brake, then the power of the two front sensors has been incorrectly connected to the +12 from the brake. Please connect the long red wire (for the power of the 2 front sensors) to +12V from the ignition, NOT to +12V from the brake. The front sensors of the system is NOT designed to be powered by +12V from the brake.

The parking sensor system detects obstacle by emitting ultrasonic wave and receiving reflected ultrasonic wave from an obstacle. Different materials have different reflection and absorption of the ultrasonic wave, and the actual detection distance varies depending on what materials an obstacle is composed of.

For example, human skin and clothes actually absorb the ultrasonic wave, and can only reflect very small portion of the ultrasonic wave back to the sensors, hence the system may detect human skin and clothes in a much shorter distance compared to other materials.

Also, the system may fail to give both visual and audible alert if an obstacle has smooth ball-shaped or sloped surfaces as such surfaces may not reflect ultrasonic wave back to the sensors at all.

Drivers in these situations should pay more attention while parking their vehicles.

To get a detection range close to the factory value, you may test the detection range using a 2'x2' flat solid cardboard to approach a sensor at about 3 mph speed.

As this is a backing up sensor system with wireless display, the communication between the wireless display and control box need to be established for the system to work properly.

After installation, if you find that the wireless display can not keep its lights on for more than 3 seconds, then the communication between the wireless display and control box may be blocked / shielded by metal parts/pieces/panels/enclosures.

If this is the case, move the control box to a different location or mount the control box in a small water-proof plastic box (not included with the system) then affix it to a location that has no or less metal parts/pieces/panels/enclosures between the control box and the wireless display.

Note: Some lights (turn signal/brake/reverse/stop lights) may emit interferences that can affect the signals the control box receives therefore cause the system to give false alert. After installation, if you experience false alert caused by turn signal light, or brake/reverse/stop lights, try to put the control box as far as possible away (at least 12 inches) from the taillight assembly (turn signal/brake/reverse/stop lights).

If you have a false alert problem such as continuous beeping/0.0 display after installation of a system, unplug all sensors from the control box, and then plug back in one sensor at a time and test to find out which specific sensor(s) is causing the problem.

If you find a sensor that is causing false alert, please check if the sensor hole in the bumper is too tight as instructed below, especially if you installed the sensors in a metal bumper:

If a sensor causes false alert or gives inconsistent results, pull it out of its hole in the bumper for about 0.5 inch, tape it to the bumper so it faces upward a little bit and see if the false alert will stop. If the false alert stops, then the hole drilled for the sensor is a little bit tight which can apply pressure on the sensor and cause the system to give false alert.

If this is the case, then carefully enlarging the hole a little bit with a small round file should solve the problem.
If the above can not solve the problem, you may need a replacement sensor.

If the control box is mounted inside the driver side taillight assembly or within 12 inches of it, then the problem is caused by the left turn signal light.
Some lights (turn signal/brake/reverse/stop lights) may emit interferences that can affect the signals the control box receives therefore cause the system to give false alert. After installation, if you experience false alert caused by turn signal light, or brake/reverse/stop lights, move the control box out of the taillight assembly and as far as possible away (at least 12 inches) from the taillight assembly (turn signal/brake/reverse/stop lights).
For trucks, you may need to mount the control box inside a water-proof plastic box (not included with the system) then secure it to the vehicle.

Some systems may have front sensors with extention cable for flexible installation. But if using a sensor without its extension cable causes the system to give false alert such as continuous beeping / 0.0 display, then you need to use the extension cable.

When brake pedal is released or vehicle is shifted out of Reverse gear, some systems may give a short beeping sound to alert the driver that the system is not powering the front sensors or the rear sensors therefore not detecting obstacles.
For front sensors, instead of connecting the yellow wire (or the power wire for the front sensors) to brake light, connecting it to 'ON' block of ignition switch or ACC to disable the short beep alert when brake pedal is released.
For rear sensors, the short beep alert when shifted out of Reverse gear can not be disabled.

If you have a false alert problem such as continuous beeping/0.0 display after installation of a system, unplug all sensors from the control box, and then plug back in one sensor at a time and test to find out which specific sensor(s) is causing the problem.

After finding which sensor is causing the false alert, please check if the sensor hole in the bumper is too tight as instructed below:

If a sensor causes false alert or gives inconsistent results, pull it out of its hole in the bumper for about 0.5 inch, tape it to the bumper so it faces upward a little bit and see if the false alert will stop. If the false alert stops, then the hole drilled for the sensor is a little bit tight which can apply pressure on the sensor and cause the system to give false alert.

If this is the case, then carefully enlarging the hole a little bit with a small round file should solve the problem.
If the above can not solve the problem, you may need a replacement sensor.

Each system has 4 rear sensors therefore blind spots in rear of vehicle are minimized until the vehicle gets too close to an obstacle within 20 inches.

If your system has 4 front sensors, then blind spots in front of vehicle are minimized until the vehicle gets too close to an obstacle within 20 inches.
If your system only has 2 front sensors, mount one sensor 1 ft or 30 cm from the corner on each side of the front bumper to get a balanced front bumper coverage.

There are many different types and models of factory installed parking sensor systems. You need to consider the compatibility issues between our sensors and the control modules from factory installed systems. Therefore, we don't recommend use of our sensors on factory installed systems.

To avoid colliding because of the inertia of vehicle while parking, keep your vehicle speed at about 3 miles per hour while parking.
Note: even if the brake is applied, your vehicle will still go for some distance by the time it comes to a complete stop, depending on the speed of vehicle.

The display will show the actual obstacle distance when you come to a complete stop if you are not getting within 1 foot (0.3 meters) of an obstacle. Otherwise, it will show 0.0 to avoid collision.
Note: distance within 1 foot (0.3 meters) is also the blind zone of the sensors in which the sensors will not respond accordingly.

The range of Working Temperature of the system is: -40C to +80C. Generally speaking, if your car stereo can work under such temperature without any problem, then the parking sensor system will also work properly as the system has no temperature sensitive parts and produce very little heat by itself.

Please check the detailed description section of the system you are ordering to see if display is in feet or meters.

No. Our parking sensors use Ultrasonic Wave (close to sound wave of human voice) to detect obstacle, therefore they are safe to vehicle's electrical systems/devices.

Simply replacing the sensors already installed with our color coded sensors may make your existing system stop to work or malfunction. This is because our sensors may not be compatible with the control unit of your parking/backup sensor system.
To make the sensors match the bumper color of your vehicle, we recommend you have your existing sensors spray painted by an auto body shop.

Please be aware that even with a parking/backup sensor system on, when you apply the brake, by the time your vehicle comes to a complete stop, it will still go for some distance because of the inertia of your vehicle. The actual stop distance depends on your driving speed.
To be safe while parking with our parking/backup sensor systems, keep your vehicle speed at about 3 miles per hour.

The mini USB connector on the side of the VFD Display is only used for making easy connection between the VFD Display and the Control Unit of the Parking Sensor System. It is not an actual USB interface.

No, we don't have voice activated parking sensor systems for sale.

Yes. Please mail your order with payment to:
   HY Technologies
   P.O. Box 361913
   Milpitas, CA 95036-1913
   USA

We ship to most of the countries worldwide as listed in the country drop-down list of the order form.

Yes. We offer discounts for volume purchases. The minimum order is 20 sets to get our discounted price. Please e-mail us for a free quote.

Yes. Please e-mail us for more information.

Please see our Warranty in our Terms and Conditions.

Please check our on-line store under Replacement Parts.
If you can't find the replacement items you need there, please e-mail us for help.

We offer three year extended warranty for $69.00 extra.
While placing your order, simply enter "Three Year Extended Warranty" in the "Comments/Special Shipping Instructions" field of the online order form. We'll bill you the extra $49.00 later after we verify your order and payment.

Please see our Terms and Conditions for details.

We provide 12-Month limited warranty on our products. The warranty excludes defects or damage due to misuse, abuse or neglect.
For 12 months from the date of purchase, we will replace the defective part if it is found to be defective in materials and workmanship.
Please see our Terms and Conditions for details.

Please see our Terms and Conditions for details.

If you can't find the answer to your questions in this FAQ's, please e-mail us for help. Most questions will be answered within 1 - 2 business days.

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