With use of IM01.EX communication module it is possible to expand communication interfaces range of the HX5.EX indicator. The module is installed outside the hazardous area, and connected to the indicator using intrinsically safe interface. IM01.EX allows to establish communication between the scale and various accessories, e.g. barcode scanners, printers, displays, control buttons, light signalling towers, buzzers and other controlling/signalling devices. It also enables connection with systems of automatic adjustment and control of industrial processes, and with superior IT systems.