4G alarm for construction site

NB-IoT Alarm for Garage Use China manufacturer. EN 54-3 certified sounder strobe with 120dB siren and high-intensity LED strobe. 4G wireless, IoT smart monitoring, OEM/ODM, wholesale, global shipping to Canada. Contact: wanlinfirecontrol@163.com

smart alarm bulk 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. Serving 60+ countr···