Grounds for application: automation of instrument accounting, GSM-connection stability in chosen place, preference of current type of connection towards another ones, opportunity for entering internet network for connection that supports… 

Grounds for application: automation of instrument accounting, presence of telephone network, practicable the presence of telephones on line (modem is programmed for the answer on the second ringing signal), moderate… 

Grounds for application: automation of instrument accounting, connection reliability, very low cost of connection and service, extra explosion-protected performance of equipment, construction of local accounting systems, remote indicator (by means… 

Grounds for application: possibility of device attendance on the object of accounting, high level of data transfer rate and reliability of connection, extra explosion-protected performance of equipment while information removing…