heat detector with data upload

Heat Detector for Greenhouse 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 Mexico. Contact: wanlinfirecontrol@163.com

NB-IoT heat alarm direct from Wanlin Fire Protection — 12-year factory experience, WL-HD901 fully certified UL 521/EN 54-5/CE/FCC/RoHS/REACH. Key specs: WiFi + Bluetooth 5.2, Fixed Temperature Thermistor + Temperature Compensation, 10-year sealed lithium battery. MOQ 100 units, 25-30 working days, OEM/ODM custom branding available. Serving 60+ countries acro···