Parking sensor kit Amio AMI-02253 — 4 black internal buzzer sensors, 16.5 mm

Amio AMI-02253 is a compact parking sensor kit that contains four black internal sensors with a 16.5 mm diameter and an integrated buzzer. Designed for retrofit installation in passenger cars, the set provides audible proximity alerts to assist drivers when reversing. The small-diameter sensors are intended for vehicles where space behind the bumper is limited or where discreet sensor appearance is preferred.

Advantages

The kit combines four close-fitting 16.5 mm sensors with an internal buzzer so audible warnings are available without the need for a separate external speaker. Black sensor housings offer a low-profile look on dark bumpers and reduce visual impact. The included buzzer provides clear, progressive beeps related to obstacle proximity, helping the driver judge distance while reversing. The design supports straightforward retrofit mounting in many passenger cars.

Suitable for

• Retrofit installation in passenger cars with limited bumper cavity space
• Owners who prefer discreet, low-profile black sensors
• Drivers who want audible reversing assistance without relying on a dashboard screen
• Situations where simple obstacle detection and proximity alerts are required

When it may not be suitable

This kit provides audible warnings only and does not include a visual display, so it may not meet needs where a camera or visual distance readout is required. Vehicles with non-standard bumper materials, very thick metal reinforcement, or complex bumper geometry may limit sensor performance or require alternative sensor sizes and placements. Professional installation may be preferable when vehicle-specific templates or bumper removal are needed.

Key specifications

• Sensor quantity: 4 sensors
• Sensor diameter: 16.5 mm
• Sensor color: black
• Alert type: integrated audible buzzer
• Mounting type: internal/through-bumper retrofit

How to use

Install the sensors into drilled holes in the bumper at the recommended heights and spacing according to vehicle guidelines. Connect the sensors to the control module and the integrated buzzer following the wiring diagram supplied with the kit, and connect power to the reverse light circuit so the system activates automatically when the vehicle is put into reverse. Test the sensors after installation to confirm detection range and buzzer response, and make minor position adjustments if necessary to reduce false triggers.

What to consider before purchase

• Confirm bumper material and available cavity depth to ensure 16.5 mm sensors fit correctly
• Decide whether an audible-only system meets your needs or if a visual display/camera is required
• Check whether professional installation is needed for your vehicle model
• Verify compatibility with the vehicle's electrical system and reverse light activation

Usage recommendations

For reliable performance, position sensors evenly across the rear bumper, avoid mounting over large seams or thick reinforcements, and verify activation wiring to the reverse light circuit. Regularly clean sensor faces to prevent false readings and test the buzzer operation during routine vehicle checks.