Item Type: RFID Barcode Access Control ReaderMaterial: PC, AcrylicUsages: Widely used in business office building visitor entry personnel management, scenic tourist personnel management, community visitor entry and exit management, administrative hall access control management, smart home, etc.Card Type: EM card or M1 cardBarcode Type: Barcode, QR CodeCommunication Method: USBDecoding Mode: CMOSQR Code Reading Direction: Take the lens as the center point and the inclined plane is 45Scanning Features: Automatic induction, buzzer promptWorking Voltage: 8-12VWorking Current: 150mACard Reading Distance: Approx. 3-6cm or 1.2-2.4inReading Speed: andlt 200msQR Code Reading Distance: Approx. 0-20cm or 0-7.9inWorking Temperature: -20 to 70Working Humidity: 10 percent -90 percent Operating System: For Windows XP 7 8 10, for LinuxBuilt in Horn: Buzzer Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.