The product is a Carquest Disc Brake Pad Wear Sensor with a manufacturer part number of 084-1601. It is a direct fit sensor designed for brake pad wear detection, with a warranty of 90 days. The package includes one sensor, suitable for placement on the rear, left, front, or right side of the vehicle. The sensor is specifically designed to detect wear on disc brake pads and ensure timely replacement, ultimately contributing to safe driving conditions.