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It's used to detect the ratio of oxygen content in the ambient air, which has 0~25% oxygen content detection function; users can set the upper and lower warning limits according to their needs and set the oxygen concentration % for alarm sounds.
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Door Access Card-reading Controller-QR Code Type
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It supports door-opening via QR Code scanning, card-sensing or password input. QR code has dynamic update mode (becomes invalid if unused for a period of time), which effectively improves usage security.
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Bike Sharing System-YouBike 2.0E
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It's an electric-assisted public bicycle system developed by Microprogram and YouBike, providing more convenient services to the users and being another new option of public transportation that can save a lot of strength!
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