fire IoT wireless digital pressure gauge

smart fire IoT hardware battery powered direct from Wanlin — 12-year Chinese smart fire IoT manufacturer, WL-SFP100 certified UL 217/UL 268/UL 2034/UL 864/CE/EN14604/EN54/FCC. Key specs: Dual-Wavelength Photoelectric Sensing + Infrared Scattering Chamber + 4G LTE Cat.1 Cellular Communication, 4G LTE Cat.1 + IoT Cloud Platform + SMS/Push/Email Alerts + Remote···

fire IoT fire door status monitoring terminal direct from Wanlin — 12-year Chinese smart fire IoT manufacturer, WL-SFP600 certified UL 217/UL 268/UL 2034/UL 864/CE/EN14604/EN54/FCC. Key specs: Fixed Temperature + Rate-of-Rise Heat Sensing + LoRaWAN Long Range + Ultra-Low Power, LoRaWAN + IoT Gateway + Cloud Platform + Long Range (up to 15km) + 4G Cat.1 Backu···