工业检测中经常使用到传感器，基恩士激光传感器的使用说明，方便您在调试过程中查询-Industry are often used to detect the sensor, Keyence laser sensor for use, allowing you to query in the debugging process

AD241电路图重点说明：在AD421搭建的过程中如何检测AD421是否正常-AD241 circuit diagram highlights: In the process of how to build AD421 AD421 correctly detect