1 Power supply modes: solar energy, rechargeable battery, non-chargeable lithium battery or field power supply.
2 Data Transmission Mode: Conventional Radio Network, GSM Network, RS-485 Network, TCP/IP Network.
3 Data-logging: Embedded SD, Sample frequency up to every single hour(or customized).
4 Operating Environment: Temperature ranges from-15℃ to +45℃, Humidity ranges from 0% to 95%（ non-condensing）.
Web based GIS Cathodic Protection Data management & control interface (both PC & Smartphone Client) Historical data track, plot, report Abnormal database Trend, alarm, event, diagnostics, configuration views Alarm forwarding Remote TRU maintenance (program downloading, on-line monitoring, parameter changing) New TRU can be added easily.