HR-802 2-way I/O module

HR-802 wireless ON-OFF input and output module is a wireless transmission wireless ON-OFF input and output module HR wireless ON-OFF input and output module is a wireless transmission equipment with four 2 way DI and 2 way relay DO. I. Function and feature 1. ON-OFF input and output transmission timingly, use conveniently. 2. 2 way input with light separated, high reliability and stability. 3. 2 way relay ON-OFF output. 4. collocate wireless data transmission module with 2