Temperature Sensor, Alarm manufacturer / supplier in China, offering Heat Detector with Sealed 10-Year Li-Battery, Wi-Fi Smart Heat Alarm with Tuya APP Control, Vh01W-03, Heat Detector with Sealed 10-Year Li-Battery, Wi-Fi Smart Heat Alarm with Tuya APP Control, Vh01W-04, Heat Detector Sealed 10-Year Li-Battery, Reliable Wi-Fi Smoke Alarm Tuya APP, Vh01W-06 and so on.