DC 9V battery + 220V Supply (SD-422H) Standalone Smoke & Heat Detector

The SD-422H Standalone Smoke & Heat Detector is a dual-function safety device designed to detect both smoke and heat, offering comprehensive fire protection. Powered by a 9V battery and 220V mains, it ensures continuous monitoring even during power outages. The 9V battery lasts between 12 to 15 months, and the detector operates with a low standby current of ≤7μA, ensuring energy efficiency. When triggered, the device consumes less than 45mA and activates both an audible alarm and a red indicator light. With an alarm sound pressure exceeding 85dB at 3 meters, it provides a loud and clear warning in case of smoke or heat detection. The smoke sensitivity ranges from 0.08 to 0.16 dB/m, ensuring quick detection. Designed to operate in temperatures from 0℃ to +50℃, the SD-422H is ideal for both residential and commercial environments. Certified by CE and compliant with EN14604:2005/AC:2008 standards, it guarantees reliability and safety. The compact dimensions of Ø132 x 41mm make it easy to install in various spaces.