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Multiple EC33 units — or a single unit with an expansion controller — can be used to scale up to buildings with many floors or multiple lift banks
or departments directly without navigating complex digital menus or directories
ideal for discrete ceilings and entryways
Fills open-plan interiors with clear sound thanks to powerful quad speakers and dual array microphones
each channel up to 6MP
Dahua Imou 5MP Video Doorbell - DB61i-W-D4 Clearance Multiple EC33 units — orDB61i supports night vision mode for clear as day clarity even in pitch dark. With IP65 certified, the doorbell can be used outdoors under different weather conditions. The support of both 2. 4 GHz and 5 GHz channels enables DB61i to provide more Wi Fi choice and extend the Wi Fi connectivity. Furthermore, it is equipped with a smart night light, which can be used to notify motion detections and illuminate in the night. Features Two way Talk Quick