The Aico 3000 Series EI3014 Heat Alarm is a brand new, hardwired smoke alarm with a battery included. It operates on a 90 dB operating sound rating and features a 10-year manufacturer warranty. Designed in the United Kingdom, this white smoke alarm by Aico is equipped with a battery backup and is compatible with Wi-Fi and X10 smart home protocols. With a diameter of 15 cm, this unit provides reliable protection for your home.