Red Lion’s robust E3 I/O™ I/O™ I/O module platform provides powerful networking and reliable remote monitoring and control capabilities for harsh industrial environments. With an all-metal housing, extensive environmental specifications and industry certifications, our set of 17 E3 I/O modules offers up to 34 mixed I/O points to meet different requirements. Add high-density I/O to our award-winning Graphite® HMIs or deploy them in stand-alone remote applications.