The AC arbon Monoxide & Gas Detector Home and Business Safety Devise, Model: KH158 is a white digital wall plug-in device designed to detect carbon monoxide and gas leaks in homes and businesses. Manufactured in 2023 in China, this detector requires one battery to operate and provides essential protection against potential fire hazards. With its advanced features and reliable power source, the KH158 model is a trusted choice for ensuring safety and peace of mind in any environment.