The 10 Year Wireless Interconnected Photoelectric Smoke Alarm can connect up to 22 alarms and provides greater protection throughout the home. When one alarm activates, all other connected alarms will activate. This provides early detection in the home. The alarm features a large and easy to access test and hush button; or you can test and hush your Watchman AJ-760SI alarms using the Watchman Remote Controller (AJ-R1062). The alarm is ideal to be installed in bedrooms, living areas and hallways. RF interconnected technology (no wi-fi/data required) Connect up to 22 alarms Built-in 3v 10 year lithium battery Large test and hush button 10 minute hush Visual indicator for operation and alarm mode Easy to install Wireless Remote Controller compatible 2 year warranty AS3786:2014 certified NZ Building Code, NZS 4514:2021 and RTA compliant