S7-400 6ES7421-7BH01-0AB0 digital input SM421 potential isolation 16DE #F3

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S7-400 6ES7421-7BH01-0AB0 digital input SM421 potential isolation 16DE #F3 Special reminder: https://360plcworld.com can pay online. If you need more product pictures, more quantity, or other questions. (E-mail: sales@360dcs.com what app: +1-(626)-546-8504) Brand New