SWP Series devices are designed to read sensors that output 0/4 ... 20 mA.
Three different models are available: 2, 4 and 8 channels. Each input can be named differently, the value read can be scaled and the unit changed. 8 channels can be watched at the same time, each channel can be displayed separately graphically. Control can be provided by 2 relays.
S-Toolkit is free of charge and device settings can be done from a PC (RS485 interface)