G'day, With regard to CBW's (C-Bus Wireless) limitation on range... (until a repeater is produced)... In installations where physical constraints such as in-floor heating, reinforced concrete or unconventional architectural styles can limit the range even further, additional wireless gateways may be installed at suitable locations to increase range. Each gateway will have to be assigned a new zone (is that the right speak?) but key assignments from devices in different zones can cross between zones. A typical two storey install may have one gateway upstairs at the front of the premises to cover devices on the top floor and the front (outside); and another on the ground floor at the rear for devices downstairs and the rear yard. Regards, Peter.