How are the MRF-200 and MRF-250 different?
The MRF-200 version 3.0 and MRF-250 version 1.0 are not different, They both offer Radio Frequency Interference (RFI) sniffing on address 0, as well as support for controlling up to 20 different devices from the front IR Blaster or 6 devices from the plug-in IR Flashers. RF addressing allows for up to 16 MRF-200 or MRF-250 to be used in one installation, IR routing for identical devices is supported on both the MRF-200 and MRF-250.