Fire alarm device

Fire alarm device specifications: electronic smoke detection device for fire prevention. protection for your family and home: detects smoke in a short period. device performance can be tested using the device effectiveness check button. equipped with a standard 9V high-efficiency and easy-to-replace battery. the device sends audible alerts when the battery is nearing depletion. suitable for use in homes, hotels, restaurants, banks, and libraries. the device covers an area of up to 40 feet (12 meters). if the area exceeds 40 feet, it is recommended to use 2 or more detectors. it is recommended to place the smoke detector in all bedrooms and on all floors.