Ei140 series smoke and heat alarms have a life expectancy of approximately 10
years. It is important that these units are replaced to ensure that your smoke
alarm system remains reliable and is functioning at its optimum.
The Ei141, Ei144 and Ei146 are usually installed by qualified electricians, making
the installation process prolonged and expensive. The new Ei140 series easichange
kits are designed for DIY installation and are provided with all necessary tools
and instructions required to allow a new alarm to be installed without an electrician.