Wireless smoke/heat detector, legacy 433-63

RF581I4.

Option to select one technology only (heat or smoke) or both technologies (heat and smoke). Can also be used as a standalone detector. Built-in sounder. Test button surrounded with status LED. 8 selectable sounder tones. 5 years estimated battery life running on 2 batteries. 2 additional battery slots available to further extend battery life. EN14604:2005/AC:2008 and BS 5446-2:2003 certified.