NewsDahua launches new-generation wireless alarm systemEditorDecember 5, 2021December 5, 2021 by EditorDecember 5, 2021December 5, 202103 Dahua Technology, releases a series of wireless alarm products, including Alarm Hub, PIR Detector, Door Detector, Keyfob, Repeater, Input Expander, Indoor & Outdoor Siren, etc....
