manual call point for home

NB-IoT manual call point China direct from Wanlin Fire Protection — 12-year factory experience, WL-MC108 fully certified EN 54-11/UL 38/CE/FCC/RoHS/REACH. Key specs: 4G LTE Cat.4 + WiFi 6 + Matter + Thread, Resettable Trigger + Multi-Sensor Verification, AC powered + 72h backup battery. MOQ 100 units, 25-30 working days, OEM/ODM custom branding available. Se···