** You may be sent the new Version ei146e this still fits existing base on the ei146rc **
Then EI146 Aico Optical Smoke Alarm is suitable for most rooms in the home aside from kitchens and garages (where fumes may trigger a false alarm).
The optical alarm is best suited to detect home fires where furniture and electricals will produce slow, smoldering fires. It has a proven optical sensor chamber and a built-in mesh screen to reduce insect and dust contamination.
The alarm is 230V AC mains connectable with a 9V alkaline battery backup power supply. The battery will last for 4 years in standby mode and up to 2 years in power mode when the main supply has been removed.
The features of the EI146 are:
Mains powered with a 9V alkaline battery backup (battery included)
Built-in test/silence button.
Interconnectable with up to 20 other 230V mains powered alarms
Easy fit base.
Low battery warning
Green LED mains indicator light and red LED light to warn the alarm has triggered.