HR-804 wireless ON-OFF relay DO module I/O module

HR-804 4 ways wireless I/O module, ON and OFF transmission module ,input and output module HR-804 wireless ON OFF input and output module is a wireless transmission equipment with four 4 way DI and 4 way relay DO. I.Function and feature 4 channel ON-OFF DI and DO transmitting timely. The 4 channel ON-OFF condition for the transmitting equipment can be output timely at the receiver equipment. That is the ON-OFF condition for the transmitting equipment is shut down, while the