The Kron KTI is an outdoor digital timetable for passenger information systems, suitable in contexts such as railway, bus and metro stations. The KTI variable message board is available in 10 or 20 lines, 60 or 80 cm high and summarizes the arrival and departure information using SMD LED technology with high brightness and visibility, which are distinguished by the significant advantages in terms of reliability, low consumption, low maintenance and life duration. The network device management is greatly facilitated by the sophisticated diagnostic system used, designed in-house by our engineers. The system with standard SNMP protocol is able to monitor the operating parameters, from temperature, humidity, ventilation and external light.