The WAC-2004 wireless access controller provides a seamless roaming experience for Moxa’s access points distributed wireless networks. It uses Moxa’s controller-based Turbo Roaming technology to achieve millisecond-level roaming over different IP subnets. The combination of an advanced roaming algorithm and mobile IP technology allows wireless clients to roam between different IP subnets within milliseconds, while maintaining stringent security in extremely demanding environments. WAC-2004 also supports 1-to-1 hot backup to help make your network more reliable. The WAC-2004 is rated to operate at temperatures ranging from 0 to 50°C, and is rugged enough for installation in any harsh industrial environment.