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🚦 Own the road with confidence — never miss a blind spot again!
The BY-J Car Blind Spot Detection System uses cutting-edge 24GHz millimeter-wave radar technology to monitor blind spots up to 98ft away, providing real-time LED and buzzer alerts synchronized with your turn signals. This universal kit fits most DC12V vehicles with plastic bumpers and integrates multiple safety functions including lane change assist and open door warnings, enhancing driving safety and reducing collision risks during lane changes and parking.









| ASIN | B09VDMHTD7 |
| Best Sellers Rank | #88 in Radar Detectors |
| Brand | BY-J |
| Compatible Devices | Car |
| Customer Reviews | 3.1 out of 5 stars 5 Reviews |
| 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 |
J**Y
My experience so far is that it’s not a reliable system
I’m sharing my experience so far. The system is not consistent in its detection of cars and trucks. It detects car about 80% of the time and trucks (track trailer) about 10% to 20% of the time. So far, I can’t rely on its results to make a safe lane change.
Trustpilot
1 month ago
3 weeks ago