4-Probe Screen Less Pure Buzzer Reversing Radar for Car Parking Sensor with Ultrasonic Sensors, Anti-False Alarm, High Sensitivity, Detection Range 30-150cm, Black Dark Blue Grey Red Silver White 12V
4-Probe Pure Buzzer Reversing Radar with Ultrasonic Sensors for Car Parking

This reversing radar system uses a pure buzzer design with no display screen, giving you clear audio-only warnings when manoeuvring. It is engineered to help drivers avoid collisions behind the vehicle by detecting obstacles and alerting through an increasingly loud beep. The system includes four ultrasonic sensors in different colours, each with a detection range of 30-150cm, and uses anti-false alarm technology for stable performance. Compatible with most 12V vehicles, it supplies everything needed for installation, including a universal hole saw for drilling the bumper. This is a practical solution for safer reversing without the need for a visual display.
Features and Construction

The reversing radar system is built around a command module and four ultrasonic sensors. It operates with a pure buzzer alert that increases in volume as you approach an obstacle, helping you judge distance audibly. The system includes protective circuits to prevent overheating or overloading.
Pure Buzzer Audio Alert
The buzzer emits a steady beep that becomes louder when the vehicle gets closer to an obstacle. This audio-cue design allows drivers to focus on the road ahead and mirrors rather than a display. The sound is clear and stable thanks to anti-false alarm circuitry.
Four Ultrasonic Sensors
Each sensor can detect obstacles between 30 and 150cm away. The four sensors cover a wide area behind the vehicle, with different sensor colours supplied to match your car's bumper colour. The advanced chipset provides accurate detection and coverage.
Installation Kit
The package includes a universal hole saw for drilling holes in the bumper, a power supply cable, and an instruction manual. The system is designed for 12V vehicles. (Note: vehicles with 24V systems are not supported.)
Uses and Placement

This reversing radar system is intended for use on cars and light vehicles with a 12V electrical system. It is suitable for both professional garage installation and competent DIY fitting.
Parking Assistance
When reversing into a parking space, the buzzer alerts you to obstacles behind the vehicle, such as bollards, walls, or other cars. The increasing beep volume gives you confidence to park closer without risk of collision.
Everyday Manoeuvring
Drivers often need to reverse in tight spaces like driveways or car parks. This system provides continuous feedback without needing to take your eyes off the surroundings. The pure buzzer design is especially useful in vehicles without a reversing camera or where a display would be intrusive.
Benefits and Buying Value

This system offers a straightforward way to add reversing safety to your car. It uses no display, so it is less distracting and easier to install. The sensors are waterproof and shockproof, built to withstand typical outdoor conditions.
Low Maintenance
Once installed, the system requires minimal attention. The protective circuits guard against electrical faults, and the sensors are sealed against moisture. The buzzer simply works when the vehicle is in reverse gear.
Why Choose This Product
If you need a reliable audio-only reversing radar with anti-false alarm tech, this product includes four colour-matched sensors and a complete installation kit. It covers a practical 30-150cm detection range and runs on standard 12V car power. Priced to offer good value for a full sensor set.






