Scantronic i-on160EX Series Radio Expander is designed for grade 2 installation. This wireless expander can also provides wireless radio hold up alarm (HUA) functionality in Grade 3 installations. This expander work with the i-on EX range, i-on30R and i-on40H intruder detection systems and reduce the maintenance time required with a device locate feature that utilises an onboard piezo sounder and also benefits from full diagnostics and fault reporting via the bus.