Neptune Systems Wireless Expansion Module/Vortech Compatible. The Wireless Expansion module (shown above) allows for truely flexible control of Ecotech Marines Vortech and EcoSmart wireless pumps. The WXM features are: * Wirelessly controls any of Ecotech's wireless pumps (WWD or EcoSmart). * 11 Independent channels to support 11 pumps. * Supports Ecotech's Constant, Reef Crest, Lagoon Random, Nutrient Transport Mode*, Tidal Swell Mode*, Pulse, Sync and Anti-Sync modes. * Modes of operation can be changed through the day. * Plug and Play. Automatically recognized when installed into the system. * Pumps can be dynamically added/removed from the system. * Two AquaBus connectors for flexible expansion via AquaBus. * Comes with 3' AquaBus cable. * Fully upgradeable. WXM firmware and pump firmware can be updated for feature enhancement. * Led Status indicator and wireless status indicator. * Compatible with Apex and Apex Lite systems. * Only supported on Ecosmart pumps.