LRSSR4x_USB Reactor Relay 4-Channel Solid State + 8-Channel 8-Bit A/D with USB Interface 4 - Optional Amp Solid-State Relay(s) USB Interface Reactor Series $208.00 Full Description> LRSSR4X_ZBMESH Reactor Relay 4-Channel Solid State + 8-Channel 8-Bit A/D with ZB ZigBee Interface 4 - Optional Amp Solid-State Relay(s) ZigBee Interface Range: 300 ft. to 1 mi. Reactor Series $197.00 Full Description> LRSSR4X_ZBMESH_MIX Reactor Relay 4-Channel Solid State Mix + 8-Channel 8-Bit A/D with ZB ZigBee Interface 4 - Optional Amp Solid-State Relay(s) ZigBee Interface Range: 300 ft. to 1 mi. Reactor Series $197.00 Full Description> LRSSR4x_ZETH-ME Ethernet Reactor Relay 4-Channel Solid State + 8-Channel 8-Bit A/D with ME Firmware 4 - Optional Amp Solid-State Relay(s) Ethernet Interface Reactor Series $247.00 Full Description> LRSSR4x_ZETH-ME_MIX Ethernet Reactor Relay 4-Channel Solid State Mix + 8-Channel 8-Bit A/D with ME Firmware 4 - Optional Amp Solid-State Relay(s) Ethernet Interface Reactor Series $247.00 Full Description>