4G alarm with low battery indicator

smart flashing alarm direct from Wanlin Fire Protection — 12-year factory experience, WL-SS105 fully certified EN 54-3/UL 464/UL 1971/CE/FCC/RoHS/REACH. Key specs: RF 433MHz Mesh + 4G LTE Backup, RF Mesh Networking + Synchronized Strobe, 3-year replaceable lithium battery (4x AA). MOQ 100 units, 25-30 working days, OEM/ODM custom branding available. Serving ···

wireless audio visual alarm direct from Wanlin Fire Protection — 12-year factory experience, WL-SS106 fully certified EN 54-3/UL 464/UL 1971/CE/FCC/RoHS/REACH. Key specs: 4G LTE Cat.4 + WiFi 6 + Zigbee 3.0, Smart Strobe + AI Adaptive Volume Control, AC powered + 48h backup battery. MOQ 100 units, 25-30 working days, OEM/ODM custom branding available. Serving···