A Mounting Kit suitable for Ei150 series Alarm. It is designed to facilitate installation of bulky wiring and conduits. The Ei157 Pattress must only be used with one of the Smoke/Heat Alarms listed above; otherwise the unit will not comply with the mandatory safety regulations. Mount the unit in accordance with the siting instructions in the Smoke/Heat Alarm instruction leaflet. After connecting all of the relevant wiring, simply screw the Smoke/Heat Alarm to the top of the Pattress.