The approach proximity sensor switch adopts an 8mm micro-thread design, a 2mm detection distance, and a 1000Hz high-frequency response to meet the requirements of high-speed production lines. It is IP67 waterproof and oil-proof, with an operating temperature range of -25℃ to 70℃ and NPN/PNP three-wire output. It is applied in industrial automation equipment, AGV carts, automated assembly lines and other scenarios.