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... you can directly scan 1D and 2dDcode from screen of computer, mobile phone and tablet. Designed with Bluetooth, 2.4G dongle wireless and USB wired 3-in-1 connection modes easily compatible with more devices...
DHT22 Single Bus Digital Temperature And Humidity Sensor 2302 Module Electronic Building Blocks Specifications: USB Protocol USB v1.1/2.0 Frequency 2.4GHz ISM Band Modulation GFSK Bluetooth Chip BC417 Transmit ...
DHT22 Single Bus Digital Temperature And Humidity Sensor 2302 Module Electronic Building Blocks Specifications: USB Protocol USB v1.1/2.0 Frequency 2.4GHz ISM Band Modulation GFSK Bluetooth Chip BC417 Transmit ...