Temperature Sensor ODM China manufacturer. Fixed temperature and rate of rise heat detection with EN 54-5 UL 521 CE certification. 4G wireless, IoT smart monitoring, OEM/ODM, wholesale, global shipping to Russia. Contact: wanlinfirecontrol@163.com
China leading lora smoke heat detector factory. CE ISO9001 ROHS standard compliant. Low false alarm rate, high sensitivity. Wholesale, OEM, ODM service. Call: +8613261677119