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🚦 Own the lane with confidence—never miss a blind spot again!
The BY-J Car Blind Spot Detection System leverages advanced 24GHz millimeter-wave radar technology with dual rear sensors to monitor blind spots and adjacent lanes up to 98ft away. Designed for universal fit on most 12V vehicles with soft rear bumpers, it integrates blind spot monitoring, lane change assist, door open warnings, and reversing radar alerts via LED and buzzer signals. While installation requires professional or skilled DIY effort, the system offers OEM-grade components and responsive customer support, empowering drivers to enhance safety and avoid side collisions during lane changes.













| ASIN | B09VDMHTD7 |
| Best Sellers Rank | #262 in Radar Detectors |
| Brand | BY-J |
| Compatible Devices | Car |
| Customer Reviews | 3.7 3.7 out of 5 stars (7) |
| Display Type | LED |
| Frequency Bands Supported | 24GHz |
| Item Dimensions L x W x H | 9.45"L x 6.7"W x 3.94"H |
| Manufacturer | BY-J |
| Mfr Part Number | 24GHz 053 |
| Power Source | Corded Electric |
| UPC | 739722614515 |
| Voltage | 12 volts |
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