RTU-LP-ST is a family of low consumption datalogger / RTU for telecontrol and data acquisition of unattended remote sites. The device integrates a Quad Band GSM / GPRS 850/900/1800/1900 MHz modem, nr. 8 I/O channels (4 digital inputs galvanically isolated with 4 totalizers, nr.2 analog voltage / current inputs, nr. 2 relay outputs 30 Vdc) and 2 MB of Flash memory for data logging.
The module can power external sensors (max. 100 mA) with automatic pre-start and can run autonomously up to 3 years with standard Li-Ion batteries of 13.000 mA / h @ 10,8 V. with 1 SMS transmission for day, all Inputs OFF, No Aux Power Output, NO RS232 communication).
Operating mode include sending log, events, alarms (via SMS or FTP Server), temporary modem switch on for sending messages and command / parameters receiving.