In industrial automation systems, reliable electrical connections are crucial for ensuring the stable operation of equipment. The M12 connector, due to its compact size, durability, and high standardization, has become one of the most common connection solutions for sensors, actuators, field buses, and industrial networks. However, when faced with various M12 connectors in the market with different codes, pin counts, and materials, how can you choose the product that is most suitable for your application scenario? This article will provide you with a comprehensive selection guide.