RGB Technology displays for weighing scales are designed to operate with weighing terminals using ASCII communication protocols. The opto-isolated display communication interface is compatible with RS-232 as well as with RS422 and RS485 serial interfaces,and also with CL 0/20mA current loop. As an additional option, the Ethernet interface is available. The displays can also communicate through a radioline wireless system. Their solid housing made of polycarbonate and steel and a high degree of protection ensure reliable operation of our devices in industrial conditions. The displays have a function of blanking unnecessary zeros, and they handle special messages: an overload, a weight measurement error, etc.. It is also possible to display advertising text.