Trane now offers Air-Fi wireless technology for building controls, allowing installations to be completed quickly with less disruption to occupants in existing buildings while providing reliability and more flexibility as building spaces change. Air-Fi features self-repairing mesh technology that includes redundant signal paths to help prevent communication failures. Trane offers a typical 200-foot indoor signal range with up to four times the number of paths, extending up to 1/2 mile when unobstructed. A lifetime battery eliminates replacement during the life of the system in most installations.