Smart Door Handles from Brighthandle
Alfa-online and Alfa-battery are door handles with a light to indicate the availability of the room. If the room is occupied a red light on Alfa-online is active on the outside of the door when the thumb turn is activated. When the room is vacant there is a continuous green light on the outside. Alfa-battery has only one color light, so it is red when the room is occupied or signals no light if the room is available.
Alfa-online model needs direct electricity power, while Alfa-battery just uses two R6 batteries.
Easy and powerful… It is perfect for public bathrooms, conference rooms, dressing rooms, etc…
Go to for manufacturer web site for more information.
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