The EIB166e is an Photoelectric Smoke Alarm with 230V AC mains power supply and rechargeable lithium battery back-up. It is supplied with the Easi-fit base to facilitate quick and simple installation, combined with easy detector head removal and replacement. The Easi-fit base automatically connects both mains power and battery as the detector head slides on. Main Features: Remote test + control - wired and wireless Integrated piezo-electrical sounder Easi-fit base Insect screen Memory Low battery indication Hardwire interconnect Wireless interconnect when fitted with RadioLINK module Certified to AS 3786:2014 5 year (limited) warranty