4G Heat Detector manufactured by Wanlin Fire Control — professional 4G smart fire safety equipment with real-time cellular monitoring. EN54/EN14604/UL/FCC certified smoke detectors, gas alarms, CO detectors, fire alarm control panels, manual call points, and sounder strobes. Factory-direct pricing with global shipping. CE/UL certified for international mark···
NB-IoT IoT heat detector direct from Wanlin Fire Protection — 12-year factory experience, WL-HD900 fully certified UL 521/EN 54-5/CE/FCC/RoHS/REACH. Key specs: 4G LTE Cat.1 + WiFi, Fixed Temperature + Rate-of-Rise Dual Sensor (57°C / 135°F), AC powered + 72h backup battery. MOQ 100 units, 25-30 working days, OEM/ODM custom branding available. Serving 60+ ···