SIEMENS SM1221 Digital Input Module, 1221 Series, Programmable Logic Controller System

　　Shenzhen Changxin Automation Equipment Co., Ltd. is committed to becoming a leading supplier and wholesaler of industrial automation products in the international market. We focus on providing one-stop industrial automation product supply chain services for military enterprises, power plants, oil and gas, automobile manufacturers, railways, petrochemicals and other industries. As a professional supplier of industrial products, we cover PLC, DCS, safety barriers, sensors and switches, low-voltage power distribution, valve positioners, control cabinets, inverters, industrial connections, actuator control boards, industrial communications, I/A & I/O systems, instruments, solenoid valves, combustion control, electronic components and other products. Our business scope includes various well-known brands of industrial automation engineering equipment, spare parts and system integration. Our purpose is to provide customers with reliable and feasible product solutions, and always adhere to the principles of customer first, honest management, mutual benefit and win-win.

　　Our advantages

　　Fast delivery: We have a professional warehousing and logistics team to ensure that your order is shipped quickly

　　Guaranteed authenticity: All our products are genuine and licensed

　　Favorable prices: We can purchase directly from overseas, reduce middlemen, and allow you to buy products at a preferential price

　　Quality assurance: All our products are strictly inspected to ensure excellent quality

　　Perfect after-sales service: We provide perfect after-sales service and one-year warranty.