A wireless mounting base for the R240 and R240RC 240v smoke alarms to allow them to interconnect wirelessly with Red 240v smoke alarms and the Red R10RF 10 year wireless smoke alarm. This wireless base also connects with the Red Smoke Alarm Controller.This product forms part of the ActivFire certification relating to RF interconnectivity on products R240, R240RC.This product must be installed by a licensed electrician.