---
product_id: 551340370
title: "BY-J Car Blind Spot Monitoring System Kit, 24GHz Millimeter Wave Radar Sensor Blind Area Detection System, Universal Car SUVs Trucks RVs Lane Changing Warning with Reversing Radar Parking System"
brand: "by-j"
price: "€ 299.22"
currency: EUR
in_stock: true
reviews_count: 4
url: https://www.desertcart.sk/products/551340370-by-j-car-blind-spot-monitoring-system-kit-24ghz-millimeter
store_origin: SK
region: Slovakia
---

# 24GHz millimeter wave radar sensor LED + buzzer multi-sensory alerts 11.5*98 ft long detection range BY-J Car Blind Spot Monitoring System Kit, 24GHz Millimeter Wave Radar Sensor Blind Area Detection System, Universal Car SUVs Trucks RVs Lane Changing Warning with Reversing Radar Parking System

**Brand:** by-j
**Price:** € 299.22
**Availability:** ✅ In Stock

## Summary

> 🚦 Stay ahead of danger—never miss a blind spot again!

## Quick Answers

- **What is this?** BY-J Car Blind Spot Monitoring System Kit, 24GHz Millimeter Wave Radar Sensor Blind Area Detection System, Universal Car SUVs Trucks RVs Lane Changing Warning with Reversing Radar Parking System by by-j
- **How much does it cost?** € 299.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/551340370-by-j-car-blind-spot-monitoring-system-kit-24ghz-millimeter)

## Best For

- by-j enthusiasts

## Why This Product

- Trusted by-j brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Extended Detection Range:** Monitors up to 98 feet behind and beside your vehicle, giving you ample reaction time.
- • **All-Weather Safety Alerts:** Reliable LED flashes and buzzer warnings in rain, fog, snow, or night driving conditions.
- • **Precision 24GHz Radar Sensor:** Detects moving objects in blind spots with unmatched sensitivity for safer lane changes.
- • **Smart Object Differentiation:** Alerts only for moving hazards like cars, bikes, and pedestrians—no false alarms from static objects.
- • **Comprehensive Driver Assistance:** Includes Blind Spot Detection, Lane Change Assist, Open Door Warning, and Rear Cross Traffic Alert for full-spectrum protection.

## Overview

The BY-J Car Blind Spot Monitoring System Kit uses a cutting-edge 24GHz millimeter wave radar sensor to detect moving objects in your vehicle’s blind spots up to 98 feet away. Designed for cars with plastic bumpers, it provides real-time LED and buzzer alerts to enhance lane changing, parking, and reversing safety in all weather conditions. Featuring four key assistance functions, this universal system is a must-have upgrade for proactive drivers seeking next-level road awareness.

## Description

Full description not available

## Features

- This radar blind spot detectors system is a vehicle assistance device that helps driver lane changing safely during driving.
- ★Adopting the most sensitive 24GHZ millimeter wave radar sensor, Detects whether a moving object enters the blind spot of the detection range on the side/rear of the vehicle.
- ★【Distinguish fixed or moving object alarm】Fixed objects do not give an alarm, while cars, pedestrians, bicycles, motorcycles, etc. in motion will give an alarm when detected.
- ★【Long Detecting Distance】When the system is on, the system would start detecting moving objectsobjects in the blind area behind the vehicle 11.5*98 ft.
- ★【Warning Alarm Function】No matter it's night time, in rain, in fog or even in the snow,, Whenever a moving object suddenly enters the detection range, the LED flashes and the buzzer sounds to remind the driver.
- ★【4 Assistance Features】BSD - Blind Spot Detection; LCA - Lane change assistance; DOW - Open door warning; RCTA - Rear Cross Traffic Alert; Help drivers avoid the side crash accident more effectively.
- ★【IMPORTANT】Can install on cars with a plastic bumper only, not work with vehicles with a metal bumper as metal bumper will interference with the radar sensor. This item fits for most DC12v sedan, compact, SUV, MPVs, pickup etc and professional audio installer installation is required.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 2 pounds |
| Product Dimensions | 9.45 x 6.7 x 3.94 inches |
| Display Type | LED |

## Product Details

- **Brand:** BY-J
- **Compatible Devices:** Car
- **Frequency Bands Supported:** 24 GHz
- **Power Source:** Corded Electric
- **Display Type:** LED
- **Voltage:** 12 Volts
- **Product Dimensions:** 9.45"L x 6.7"W x 3.94"H
- **UPC:** 739722614522

## Images

![BY-J Car Blind Spot Monitoring System Kit, 24GHz Millimeter Wave Radar Sensor Blind Area Detection System, Universal Car SUVs Trucks RVs Lane Changing Warning with Reversing Radar Parking System - Image 1](https://m.media-amazon.com/images/I/71S7VoEM90L.jpg)
![BY-J Car Blind Spot Monitoring System Kit, 24GHz Millimeter Wave Radar Sensor Blind Area Detection System, Universal Car SUVs Trucks RVs Lane Changing Warning with Reversing Radar Parking System - Image 2](https://m.media-amazon.com/images/I/711twUpw37L.jpg)
![BY-J Car Blind Spot Monitoring System Kit, 24GHz Millimeter Wave Radar Sensor Blind Area Detection System, Universal Car SUVs Trucks RVs Lane Changing Warning with Reversing Radar Parking System - Image 3](https://m.media-amazon.com/images/I/61ec4b+treL.jpg)
![BY-J Car Blind Spot Monitoring System Kit, 24GHz Millimeter Wave Radar Sensor Blind Area Detection System, Universal Car SUVs Trucks RVs Lane Changing Warning with Reversing Radar Parking System - Image 4](https://m.media-amazon.com/images/I/61P92SBEMlL.jpg)
![BY-J Car Blind Spot Monitoring System Kit, 24GHz Millimeter Wave Radar Sensor Blind Area Detection System, Universal Car SUVs Trucks RVs Lane Changing Warning with Reversing Radar Parking System - Image 5](https://m.media-amazon.com/images/I/71OElMtnLTL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excelente producto
*by O***Z on December 5, 2024*

Tanto de noche hasta con lluvia funciona muy bien

### ⭐⭐⭐ My experience so far is that it’s not a reliable system
*by J***Y on September 17, 2024*

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.

### ⭐⭐⭐⭐⭐ Great picture
*by F***G on October 31, 2024*

Easy installation

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**Shop now:** [https://www.desertcart.sk/products/551340370-by-j-car-blind-spot-monitoring-system-kit-24ghz-millimeter](https://www.desertcart.sk/products/551340370-by-j-car-blind-spot-monitoring-system-kit-24ghz-millimeter)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-05*