Meross GS559A Smart WiFi Smoke Sensor (HomeKit)Meross GS559A Smart WiFi Smoke Detector This smart and precise smoke detector will keep you and your family safe. When the alarm detects smoke, it automatically emits a warning sound. If you use several alarms at the same time, all you need is for one of them to detect smoke and all available devices will activate. In addition to smoke detection, it can also detect overheating, and thanks to its compatibility with the separately sold HUB, you can