AC 220V With 9V backup battery (SD-423S) Standalone Smoke Detector

The SD-423S Standalone Smoke Detector offers dual power support with an AC 220V mains supply and a 9V backup battery, ensuring uninterrupted protection even during power outages. It is designed with energy efficiency in mind, featuring a standby current of less than 7μA for the battery and less than 30mA for AC operation. In case of smoke detection, the alarm consumes less than 45mA and activates a loud alarm sound exceeding 85dB at 3 meters, alongside a red indicator light for visual alert. The smoke detector’s sensitivity range of 0.08-0.16 dB/m ensures accurate and timely detection. It operates within a temperature range of 0℃ to +50℃, making it ideal for various environments. The SD-423S meets EN14604:2005/AC:2008 standards and carries CE certification for safety and reliability. Its compact design, with dimensions of Ø132 x 41mm, makes it easy to install in both residential and commercial spaces.