FireHawk RF-Link Wireless Interlinked Smoke Alarm 10 Year Battery | FHB10-RF

The FireHawk RF-Link Smoke Alarm interlinks wirelessly with other RF-Link smoke, heat and CO alarms to give full-home coverage, and its sealed 10 year lithium battery means tool-free installation with no wiring. When one alarm in the system detects smoke, every linked alarm sounds giving occupants the earliest possible warning wherever they are in the property, which is exactly what's needed to meet interlinking requirements in rented and multi-storey homes.