Dahua Fire Detectors
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DahuaDHI-HY-SA21A-W2(868) Wireless Smoke Detector
DHI-HY-SA21A-W2(868) Wireless smoke detector The Dahua Wireless Smoke Detector provides battery-powered smoke detection and alarm functions within a single unit. Advanced electronics combined with a photoelectric smoke detection chamber provides early detection of smoke and high immunity to unwanted alarms....