NB IoT fire alarm visual indicator

NB-IoT alarm sound and light combo direct from Wanlin Fire Protection — 12-year factory experience, WL-SS104 fully certified EN 54-3/UL 464/UL 1971/CE/FCC/RoHS/REACH. Key specs: LoRaWAN 868/915MHz, High-Intensity LED Strobe + Multi-Tone Sounder, 3-year replaceable battery (2x C lithium). MOQ 100 units, 25-30 working days, OEM/ODM custom branding available. S···

NB-IoT alarm with remote monitoring direct from Wanlin Fire Protection — 12-year factory experience, WL-SS107 fully certified EN 54-3/UL 464/UL 1971/CE/FCC/RoHS/REACH. Key specs: Bluetooth 5.0 + 4G LTE (optional), Compact High-Output Strobe + Mini Sounder, 2-year replaceable battery (1x CR123A). MOQ 100 units, 25-30 working days, OEM/ODM custom branding avai···