Modbus protocol

Aico smoke detector alternative direct from Wanlin Fire Protection — 12-year factory experience, WL-SFP100 smart fire detector certified CE/EN14604/EN54/UL217/UL268/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 Moni···

Low-Temperature Resistant Level Sensor direct from Wanlin Fire Protection — 12-year factory experience, 4G Wireless Pressure Liquid Level Sensor (WL-LT200) certified CE/ATEX/FCC/RoHS. Key specs: 4G Cat.1/NB-IoT wireless, 4-20mA output, IP68, 0-100m range, explosion-proof, 0-100m range. MOQ 200pcs, OEM/ODM available.