The EXP-R10 and EXP-R30 are designed for Grade 2 installations, as part of PD6662:2010 these expanders can provide radio HUA functionality in Grade 3 installations. These radio expanders work with the latest i-onEX intruder detection systems. Uniquely, the EXP-R10 and EXP-R30 provide radio outputs which can be used to trigger remote equipment for example gates at the end of a drive, or lights across yard or garden. Additionally these expanders support Radio Grid Roaming where expanders are combined to create a single, virtual radio grid. Allowing the transmissions of enabled devices to be processed regardless of their location within the grid?s range. All intelligent expanders, with full diagnostics and fault reporting via the bus. A built-in piezo sounder responds to the locate a bus device feature.