The FireAngel HW1-R Heat Alarm in white is a reliable and advanced home safety device. With both battery and hardwired power sources, this heat alarm is equipped with features such as a photoelectric smoke sensor, rechargeable battery, and voice alerts. Compatible with Google Home and weighing 2.70 kg, this model offers smart home integration through Bluetooth and Powerline/UPB protocols. Manufactured in 2003 and 2020, this FireAngel heat alarm provides peace of mind for homeowners looking to enhance their fire safety measures.