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 | This icon stands for a higher IP level, from IP65 upwards. All products marked with this symbol are particularly suited for the application in rugged environments. |  | This symbol marks all data input devices with illumination feature. The backlight illumination of the control panel allows for an enhanced visibility of the keys and its markings in dark environments. |  | This symbol refers to devices which can be applied in potentially explosive environments. Due to their strict testing and certification, these devices comply with the so-called EX standard. |  | This sign indicates keyboards with antimicrobial surfaces. The material of this surfaces contains substances which prevent the growth of bacteria and germs. |  | This sign stands for the wireless data transmission from the data input unit to the RF-based system. Thus, the input systems can be used in a flexible and mobile way. |  | This icon refers to the biometric recognition used for system access control. As an integrated or stand-alone device, the software provided scans and identifies fingerprints. |
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