residual current

SNI Certified Smoke Detector — Wanlin, a Chinese fire protection products and application equipment manufacturer and exporter based in Shenzhen, China, supplies the A119-YW line across photoelectric smoke detectors, A1R / A2S heat detectors, resettable and weatherproof manual call points, EN 54-3 and EN 54-23 sounder strobes, the 860 addressable fire alarm ···

fire IoT smoke-heat combination terminal direct from Wanlin — 12-year Chinese smart fire IoT manufacturer, WL-SFP800 certified UL 217/UL 268/UL 2034/UL 864/CE/EN14604/EN54/FCC. Key specs: Photoelectric Smoke Sensing + RF Wireless Interconnect + Mesh Network + Self-Healing, RF Wireless Mesh + 4G LTE Cat.1 Gateway + Cloud Platform + SMS/Push/Email + Voice Ale···