4-Sensor Car Parking Reverse Backup Radar with Buzzer Sound Alert

Never worry about misjudging distances when reversing again. This 4-Sensor Car Parking Reverse Backup Radar gives you instant, audible distance alerts the moment you shift into reverse — making tight parking spaces, driveways, and garages much easier to navigate with confidence.

Why You'll Love This Parking Sensor Kit

4 Ultrasonic Sensors: Provides wide rear coverage to detect obstacles accurately at multiple angles.
Audible Buzzer Alert: Sound tone increases in frequency as you approach an obstacle, giving you clear, real-time distance feedback.
Easy Installation: Mounts directly to your rear bumper and connects to your reverse signal — no complex wiring required.
Universal 12V Compatibility: Works with most passenger cars, SUVs, and light trucks running a standard 12V system.
22mm Sensor Probes: Slim, low-profile sensor design blends cleanly with most bumper styles.
Sleek Black Finish: Discreet black color integrates seamlessly with dark or standard bumpers.
Automatic Activation: System activates automatically when reverse gear is engaged — no manual switching needed.

Product Specifications

Number of Sensors: 4
Sensor Diameter: 22mm
Operating Voltage: 12V DC
Alert Type: Buzzer (variable frequency tone)
Color: Black
Detection Range: Approx. 0.3m – 2.5m
Activation: Automatic via reverse gear signal

What's in the Box

4 × Ultrasonic Parking Sensors (22mm)
1 × Control Unit
1 × Buzzer
1 × Wiring Harness
1 × Drill Bit & Installation Hardware
1 × Instruction Manual

Great For

This kit is ideal for drivers upgrading older vehicles that lack factory parking assist, as well as anyone who wants an affordable, reliable backup warning system. Whether you're parking in a crowded lot, a narrow garage, or a tight urban space, the audible buzzer keeps you informed every step of the way.

Frequently Asked Questions

Q: How does the 4-sensor car parking reverse backup radar work?

A: The system uses four ultrasonic sensor probes mounted on your rear bumper. When you engage reverse gear, the sensors emit ultrasonic pulses and detect nearby objects. The onboard buzzer emits an audible tone that increases in frequency the closer you get to an obstacle, giving you clear, real-time proximity awareness while reversing.

Q: Is this parking sensor kit compatible with my vehicle?

A: This kit is designed for universal fit on most passenger cars, SUVs, and light trucks that operate on a standard 12V electrical system. The 22mm sensors fit standard bumper drill holes and the wiring connects directly to your vehicle's reverse light circuit.

Q: Is the parking sensor kit difficult to install?

A: Installation is straightforward for most DIY-minded drivers. The kit includes a drill bit, wiring harness, and instruction manual. You'll need to drill four evenly spaced holes in your rear bumper, mount the sensors, connect the control unit to your reverse light wire, and secure the buzzer inside your cabin. Most installations can be completed in 1–2 hours.

Q: What is the detection range of the sensors?

A: The sensors are capable of detecting obstacles from approximately 0.3 meters up to 2.5 meters away. The buzzer tone gradually increases in speed as the distance decreases, alerting you well before you get too close to an object.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.