Siemens 6ES7421-1BL00-0AA0 SM 421 digital input module SIMATIC S7-400

SIMATIC S7-400, digital input SM 421, isolated 32 DI; 24 V DC

    Wisdomlong Technology CO.,LTD locats at the central of China,Shenzhen, Guangdong Province. With rapid development, Wisdomlong serves fields of automation in global markets, Our business covers five continents throughout the world with the basic conviction of honest, the international management of customer-centered concept and purpose of bringing convenience to customers. We have confidence to bring our customers more substantial profit with high-quality service and reasonable prices.

    Choosing us,you will choose a sincere friend and reliable partner. Please feel free to contact us if you are a global manufacturer of high quality brand products who desires to enter the Chinese market or who searches for a Chinese agent.We would like to create a brilliant future with friends in domestic and overseas. All goods sold have one year warranty.

    The company with domestic and international numerous well-known brands supplier to build have extremely good relations of cooperation, in Japan, South Korea, southeast Asia, Africa, Europe and the United States, and formed a stable and efficient supply network. The agent and the products are widely used in machinery, equipment manufacturing, electric power, metallurgy, petrochemical, automobile manufacturing industry, paper making, chemical industry, medicine and aerospace industries.