Brand: OPTO-22
SNAP-SCM-485-422
SNAP 2-Ch RS-485/422 (2-wire or 4-wire) Serial Communication Module
                    Preorder:  Typically ships in 
                    
                        2 weeks
                    
                
                Brand: OPTO-22
SNAP 2-Ch RS-485/422 (2-wire or 4-wire) Serial Communication Module