Wireless Smoke and CO Alarm Controller - Ei450

The Ei450 alarm controller has four main functions. The information below provides a brief explanation of each.

Test Function: Activates all alarms in the system to sound.

Locate Function: Silences all alarms for approximately 10 minutes, apart from the unit which activated the system.

Silence Function: Silences all alarms for approximately 10 minutes. This is also known as a "hush" facility and is used when a false alarm occurs.

Memory Function: Indicates if a fire or CO alarm has previously been activated.

The table below shows all the units that can interlink with the Ei450.

Smoke and Heat Alarms

Carbon Monoxide Alarms

Ancillary Products

Wiring Explained

Mains powered Ei Electronics smoke and heat alarms require a 230V AC power supply and up to 12 alarms can be hardwire interlinked in one system.

To obtain a mains power supply, each alarm can be connected to the nearest lighting circuit using 2 core and earth cable with a separate, dedicated interlink cable connecting alarms where applicable. However, if possible it is recommended that any alarms connected via interlink cable are all powered from a dedicated circuit from the distribution board using 3 core and earth cable for safety during maintenance, as the interlink cable will carry power from live alarms on other power circuits. Please see the diagram below:-