Buzzer Reverse Parking Sensor Product Details
I. Product Overview
The buzzer reverse parking sensor is an essential safety assistant device for vehicles during parking or reversing. Composed of ultrasonic sensors (probes), a control unit, and a buzzer, it accurately detects obstacles around the vehicle and provides clear audible alerts, effectively eliminating the hassle of constant visual checks. It helps overcome blind spots and obscured visibility, significantly enhancing driving safety.
II. Working Principle
When the vehicle shifts into reverse gear, the parking sensor activates automatically. The probes, mounted on the front/rear bumper, emit ultrasonic waves at a 45° angle for comprehensive horizontal and vertical detection. Upon encountering an obstacle, the reflected signal is received by the probes. The control unit calculates the distance based on the time difference between signal transmission and reception.
The buzzer's alarm frequency escalates as the vehicle approaches an obstacle:
- Long-distance (>1.5m): Intermittent low-frequency beeps ("Beep-Beep-")
- Mid-distance (0.5-1.5m): Faster mid-frequency beeps ("BeepBeep-BeepBeep-")
- Close-range (0.3-0.5m): Continuous high-frequency alarm ("BeepBeepBeep!")
This intuitive audio feedback allows drivers to gauge distances effortlessly without relying solely on visual displays.
III. Key Features
1. Smart Distance Detection**: Ultrasonic sensors cover 0.3-2 meters with high precision.
2. Multi-Stage Alerts:
>1.5m: Low-frequency beeps
0.5-1.5m: Mid-frequency beeps
0.3-0.5m: Continuous urgent alarm
3. Blind Spot Coverage: Detects low obstacles (e.g., curbs, pets, children)
IV. Technical Specifications
| Parameter |
Specification |
| Operating Voltage: |
DC 12V |
| Rated Current: |
30-150mA |
| Ultrasonic Frequency: |
40 kHz |
| 0perating lerperature: |
-20°C to +70°C |
| Detection Range: |
0.3- 2M |
| Detection Angle: |
120°(H)/60°(V) |
| Protection Rating: |
IP67(waterproof and dustproof) |
| Number of Sensors |
2/4/6/8/12 Optional |
| Alarm Volume : |
≥75dB(adjustable) |
V. Product Advantages
1. High Accuracy: Reliable detection range (0.3-2m) for diverse obstacles.
2. Real-Time Alerts: Escalating beep frequency for instant hazard awareness.
3. Easy Installation: Includes hole cutter + guide; no professional tools needed.
4. Robust Performance: High-quality components withstand harsh conditions.
5. Wide Compatibility: Fits most vehicles; customizable options available.
6. Certifications: E8, FCC, E-MARK, FDA, CE, ROHS, EMS compliant.







VI. Usage Notes
Important:
Parking sensors supplement but do not replace driver judgment. Always check mirrors and surroundings.
Regularly clean probes to avoid dirt interference.
Refer to the manual for model-specific settings.
For installation videos or customization, contact us!

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.

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.