Brand: TRICONEX P/ n:3501E Description:digital input module, isolated, non-public Origin: United States Xiamen Xiongba provides 3501E DCS/PLC, Xiamen Xiongba Shan Ni for your quotation, and provide one-year warranty service. 3501E high quality affordable models. [caption id="attachment_4931" align="aligncenter" width="600"] 3721[/caption] Xiamen Xiongba Electronic Commerce Co., LTD. (Zhangzhou Branch) Unit 2009, Creative Center, 1733 Luling Road, Siming