The Delphin Expert Logger data logger is available in three versions that can process 16, 32 or 46 analog input channels. Up to eight digital inputs/outputs and an SDI-12 interface are available. Stored data can be accessed via USB, wireless LAN interfaces or remote cellular connection to the Internet using UMTS/LTE. The data logger can communicate as standard via CanBus, ModBus and Profibus. Users can connect sensors to the logger using plug-in screw terminals and a channel arrangement chart. They can configure each set of four terminals as two differential inputs to measure thermocouples, current or voltage or to take measurements from a four-wire RTD.