Pyrexx

Pyrexx is a premium brand of smoke alarms manufactured in Germany. They detect both smoke and heat , offering superior detection against all types of emerging household fires. Pyrexx also offers a wireless version of the alarm which creates a network where one alarm will activate all alarms, thereby warning everyone in the house, regardless of where they are located with respect to the fire. These are the only home smoke alarms in the world to boast a 12 year battery life.

Available from Smoke Alarms Direct and other electrical wholesalers.