The Festo 675529 is a genuine OEM ring magnet, type BA-K01M-040-LP, specifically designed for use with proximity sensors in industrial automation applications. This high-quality component features an outside diameter of 40 mm, an inside diameter of 28 mm, and a height of 10 mm. It is constructed with a plastic-bonded ferrite magnet and an aluminium housing, ensuring reliable performance across an operating temperature range of -20 to 80 °C. This ring magnet is also RoHS compliant, weighing approximately 0.02 kg.