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🚦 Stay Ahead of the Curve — Never Miss a Moving Threat!
The BY-J Car Blind Spot Detection System leverages cutting-edge 24GHz millimeter-wave radar technology to provide real-time alerts for vehicles in your blind spots up to 98ft away. Featuring dual microwave sensors and multi-function safety warnings—including lane change assist and door open alerts—this universal kit fits most plastic-bumper vehicles running on 12V power. Designed to reduce collision risks during lane changes, it activates with turn signals and uses LED and buzzer notifications to keep professional drivers confidently connected to their surroundings.









| 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 week ago
1 month ago