I.What is a Blind Spot in the Rearview Mirror?
The rearview mirrors on both sides of the car can only show the sides of the vehicle body, and they cannot fully gather all the information around the vehicle. Especially when merging from an auxiliary road onto the main road, if you can't observe vehicles in the left rearview mirror and then accelerate and make a large-angle cut into the inner lane, there is a high likelihood of colliding with vehicles that are driving at high speed in the inner lane.
II.Why should a blind-spot monitoring and lane-changing assistance system be installed?
Numerous traffic accidents are attributed to vehicle blind zones
III.Key Features
1,Blind Spot Monitoring
Turn on the car power and activate the blind spot monitoring function. The monitoring range is 4.4 meters horizontally on the side of the car and 10 meters behind the car. When a vehicle enters the monitored blind spot area, a warning prompt will be issued, and the warning will not be cancelled until the target object leaves the monitoring area.
(1)Level 1 warning: The yellow LED warning light is on.
(2)Level 2 warning: Turn on the turn signal, the buzzer beeps three times, and the red LED warning light flashes
2,Lane change warning (LCA)
During the driving process, the lane change warning function is continuously activated, The monitoring range is 4.4 meters horizontally on the side of the car and 10 meters behind the car. When the vehicle enters the monitoring blind spot, a warning prompt is issued until the target object leaves the monitoring area, and the warning is canceled. If the collision time with the vehicle behind the vehicle is less than 5 seconds within 50 meters, the system will issue a level one warning prompt.
(1)Level 1 warning: The yellow LED warning light is on.
(2)Level 2 warning: Turn on the turn signal, the buzzer beeps three times, and the red LED warning light flashes
3,Door opening warning (DOW)
After the car stops, activate the blind spot monitoring function. The distance behind the rear of the car is about 10 meters. When the vehicle enters the monitoring blind spot, a warning prompt will be issued until the target object leaves the monitoring area, and the warning will be canceled
(1)Level 1 warning: The yellow LED warning light is on.
(2)Level 2 warning: Turn on the turn signal, the buzzer beeps three times, and the red LED warning light flashes
4,Rear Cross Traffic Alert (RCTA)
When the reverse gear is engaged and a moving vehicle or pedestrian enters the monitoring area within 3-5 meters horizontally on the side of the car, a Level 1 warning is issued: the yellow LED warning light turns on. The warning will be canceled only after the target object leaves the monitoring area.
5,Active Overtaking Alert (AOA)
Monitors the surrounding environment in real time during overtaking, predicts potential collision risks, and warns the driver or automatically takes intervention measures to improve overtaking safety.
6,B-Pillar Blind Spot Vehicle Following at the Same Speed Warning
When it is detected that the vehicle in front of it and the vehicle traveling at the same speed have entered the blind zone of the B-pillar, and there is a potential collision hazard, the system will issue a timely warning signal to alert the driver, so that the driver can take appropriate measures to avoid the occurrence of a collision accident.
IV.Technical Specifications
| Parameter |
Specification |
| Working Voltage |
10-15v |
| Maximum Power Consumption |
5W |
| Operation Temperature |
-20~+80ºC |
| Working Current |
30-150mA |
| Standby Current |
0mA |
| Alarm Volume |
80dB |

V. Product Advantages
1. Extensive detection coverage compensates for visual blind zones, significantly enhancing driving safety.
2. Using millimeter microwave radar technology, the accuracy can reach ± 0.1 meters, ensuring the accurate monitoring of the target by the system
3. Adapt to a variety of road conditions: Whether it is the high-speed driving scene of the expressway, or the low-speed driving situation of frequent starts and stops on urban roads and complex intersections, the BSM system can work stably and continue to play a monitoring and early warning role.
4. Strong stability:excellent anti-interference, high-quality electronic components and advanced manufacturing processes are used, and extreme weather can also be warned with 0 delays
5. Multi-level alarm system: provides visual (lighting) and audible (beeping) warnings according to the level of danger
6. Good compatibility: It can be widely adapted to various models, and some products also support personalized customization, providing exclusive driving safety solutions for each car owner.
Company Profile

BOTRS Electronics | 20 Years as Your Automotive Safety Manufacturer
Founded in 2005, BOTRS is a national high-tech enterprise specializing in the R&D and manufacturing of automotive safety electronics, including parking sensors, blind spot detection, backup cameras, and 360° systems.
Full-Chain Manufacturer
We control the entire process in-house: from R&D, molds, injection molding, SMT, to final assembly and testing. This ensures superior quality, stability, and direct cost efficiency.
Trusted by Global Brands
Our products are supplied to automakers like **BYD, Honda, Nissan, Subaru**, and are exported worldwide.
Certified Quality
• IATF 16949 Certified
• 30+ National Patents
• CE, E-MARK, RoHS Compliant
Choose BOTRS, Choose a Trusted Manufacturing Partner.
We leverage strong manufacturing capabilities and rigorous quality control to provide you with stable and reliable automotive safety electronics products. OEM/ODM collaborations are welcome.

FAQ
Q1: Manufacturer or trading company?
A: We are a manufacturer with our own factory, R&D team, and production lines.
Q2: What is your MOQ?
A: MOQ is negotiable. Please share your requirements for a customized solution.
Q3: Can I get a sample?
A: Yes, samples are available. Contact us for details on sample cost and shipping.
Q4: Do you offer OEM/ODM services?
A: Yes, we provide customized packaging, logo printing, and labeling according to your needs.
Q5: Do you offer distributor or long-term cooperation pricing?
A: Yes. Please contact us to discuss bulk or distributor pricing.
Q6: What is the lead time?
A: 3-15 working days, depending on order quantity.
Q7: How do you ensure quality?
A: We perform 100% testing before shipment and follow strict QC procedures to ensure stable performance.
Q8: What is the warranty period?
A: One year.
Q9: What shipping methods do you offer?
A: DHL, EMS, FedEx, UPS, TNT Express; available by air or sea.