Ultrasonic Parking Sensor System Flush Mount Front & Rear with LED Display & Buzzer 12V Kit

• Customization: Available
• Alert Type: Audible Alarm, Visual Display
• Compatibility: Cars, RVs, SUVs, Trucks, Vans
• Model NO.: HR-302B
• Detection Range: 2 meters
• Installation Type: Flush Mount
• Number of Sensors: 2/4 Optional
• Operating Temperature: -40℃ - 80℃
• Operating Voltage: 12V
• Power Supply: 12V DC
• Sensor Type: Ultrasonic Sensor
• Waterproof Rating: IP67
• Installation: Rear Bumper
• Beep Alarm: Support with Built-in Buzzer
• Sensor Cable: 2.5m
• Display Cable: 6m
• Operating Frequency: 40kHz
• Use: Rear Parking Assist
• Display: LED Digital Display
• Transport Package: Carton
• Specification: 230*155*55MM
• Trademark: OEM
• Origin: Guangdong, China
• HS Code: 8512301900
• Production Capacity: 20000 Pieces/Month
• Package Size: 47.50cm * 33.50cm * 32.00cm
• Package Gross Weight: 12.000kg

Product Description

Product Description

Universal Rear Parking Sensor System(With LED Display and Buzzer Alarm)

This product is a Rear 4-Sensor Ultrasonic Parking Assistance System, adopting a standard layout on the rear bumper to accurately cover the key blind zones behind the vehicle. The system detects the distance to rear obstacles in real time and provides intuitive dual visual and audio alerts via a high-definition LED display and smart graded buzzer tones (where the alert frequency increases as the distance decreases).

With easy installation and wide compatibility, it is designed to enhance safety and confidence during reverse parking, parallel parking, and rear obstacle avoidance, making reversing maneuvers more relaxed and reassuring.

Are you experiencing any of the following parking challenges?

1.Difficulty judging parking distance 

2.Narrow roads make it difficult to maintain a safe distance, increasing the risk of scratches 

3.Rear blind spots during reversing.

4.Low-profile obstacles are difficult to detect 

5.Reduced visibility in rainy or nighttime conditions 

6.New drivers often struggle to accurately judge parking distance

Key Features

1.Reverse Parking Assistance
Continuously detects rear obstacles in tight parking spaces or garages and provides distance alerts to ensure safe parking.

2.Tight-Space U-Turn / Reverse Guidance
Helps drivers maintain a safe distance from vehicles, walls, or obstacles when performing U-turns or reversing on narrow roads.

3.Low-Height Obstacle Detection
Accurately detects curbs, fire hydrants, short posts, and other low-lying obstacles in the rear blind spot, issuing timely warnings to prevent scrapes and collisions.

4.All-Weather & Nighttime Protection
Provides detection capabilities beyond human vision in rain, fog, heavy snow, or complete darkness, keeping the rear environment fully under control.

5.Enhanced Confidence for Novice Drivers
Offers intuitive audio-visual guidance to help novice drivers better perceive space, reduce stress during reversing, and operate with greater confidence.

Our Advantages

1. High-Frequency Ultrasonic Precision Ranging
Utilizes high-frequency ultrasonic sensing technology for precise distance detection, featuring an effective range of 0.3–2 meters and a resolution of up to 0.1 meters.

2. IPX7 Industrial-Grade Waterproof Protection
The sensors feature IPX7-rated high-strength waterproofing and sealing, ensuring stable performance and reduced false alarms even in heavy rain, car washes, or flooded road conditions.

3. Compact Display: Clear Driving Visibility
The LED display features a sleek, minimalist design that can be flexibly installed on the dashboard or other convenient locations without obstructing the driver's field of vision.

4. Dual Visual & Audio Alerts: Intuitive and Worry-Free
Visual: Uses a three-color segmented indicator light that shifts from green to yellow to red in real-time as the risk level increases.
Audio: Equipped with a built-in smart buzzer; the frequency of the alert tone accelerates as obstacles get closer, providing a clear sense of urgency.

5. Versatile Configurations to Meet Individual Needs
Offers a wide range of control units, sensors, and waterproof wiring harness options, allowing for flexible combinations based on vehicle model, budget, and personalized installation preferences.

6. OEM Color Customization: Seamless Body Integration
Available in hundreds of OEM-grade paint colors, allowing the sensors to blend seamlessly with the bumper and maintain the vehicle's original aesthetic integrity.

7. Non-Destructive Installation: Protects Original Paint
Equipped with professional hole-saw tools to achieve smooth, micro-hole installations, preserving the vehicle's beauty to the greatest extent possible.

Specification

Specification	Parameter
Kind	Obstacle Detection Radar
Working Principle	Ultrasonic Reflected Wave
Function	Rear Parking Assist
Operating Frequency	40kHz
Operating Temperature Range	-40°C ~ +80°C
Rated Operating Voltage	12V(DC)
Operating Voltage Range	9V~16V(DC)
Operating Current	30-150mA
Power Consumption	5W
Test Distance	0.3-2m
Visual Warning	LED Display
Audible Alert	Beeping
Number of Sensors	2/4 Optional
Colors for Sensors	Multiple colors are available

Packing & Delivery

Precautions

1. Illustration Note:
Product images are for reference only. Actual components may vary depending on the specific configuration. Please refer to the actual product.
2. Function Purpose: 
This system is a driver assistance device and cannot replace the driver's observation. Always use it in conjunction with your surroundings to ensure safety.
3. Maintenance Recommendation: 
Regularly check the operation of the sensors. If the sensor surfaces are dirty, damaged, or the system issues abnormal alerts, please clean or repair them promptly.
4. Usage Instructions: 
Please read the user manual carefully before use to fully understand the product's performance and correct operating procedures.
5. Installation Tip: 
It is recommended that installation be performed by a professional automotive electronics technician to ensure proper functionality, accurate distance measurement, and to protect the vehicle's wiring and exterior.

Company Profile

Huizhou BOTRS Electronics Co., Ltd.

Founded in 2005, BOTRS specializes in the R&D and manufacturing of automotive electronics. Our core products include:

 * Parking Sensors
 * Blind Spot Detection (BSD) Systems
 * Rearview Camera Systems
 * 360° Surround View Systems

We possess full vertical integration and in-house R&D capabilities, covering the entire process from design, wiring harness production, mold & injection molding, SMT assembly, to final product assembly and testing.

We are a long-term partner to automotive brands such as BYD, Honda, Nissan, King Long Bus, Foton (for light trucks), and Subaru. Our products are exported to numerous countries including Russia, Indonesia, Vietnam, Colombia, Malaysia, South Africa, Iran, Ecuador, South Korea, Saudi Arabia, and the UAE.

Honors & Certifications:
 * Holder of 30+ National Patents
 * ISO 9001 & IATF 16949 Certified
 * International Approvals: CE, E-MARK (E8), FCC, RoHS, among others
 * Recognized as a "Top 10 Automotive Electronics Brand in China"
 * Awarded "Top 100 Automotive Parts Supplier in China"

With over two decades of dedication to parking and driving safety, BOTRS is committed to delivering reliable and intelligent driving experiences for vehicle owners worldwide.

FAQ

Q1: Manufacturer or Trading Company?
A: We are a direct manufacturer with an in-house R&D team and professional production facilities.

Q2: What is your MOQ?
A: Our MOQ is flexible. Contact us with your project details for a customized solution.

Q3: Are samples available?
A: Yes. Please reach out to confirm sample costs and shipping arrangements.

Q4: Do you offer OEM/ODM services?
A: Yes, we do. Please let us know your specific customization requirements.

Q5: Do you offer distributor or bulk pricing?
A: Definitely. We welcome long-term partnerships; please contact us for our wholesale price list.

Q6: What is the lead time?
A: Generally 3–15 working days, depending on your order volume.

Q7: How is quality guaranteed?
A: We implement strict QC protocols and 100% pre-delivery testing to ensure peak performance.

Q8: What is the warranty?
A: All products come with a one-year warranty.

Q9: What are the shipping options?
A: We ship via major express carriers (DHL, FedEx, UPS, TNT), air freight, or sea freight.