deal for all kinds of industry standard sensors and transducers. The ED-549 has 8 Analogue Inputs + RS485 Gateway. It is suitable for high-precision measurements of voltages and currents.Most parameters in the real world are measured using sensors with analogue outputs sensors and Brainboxes ED-549 takes these real world signals and turns them into data on your network. As well as the popular 0-10V and 4-20mA input devices, there is now a Programmable Gain Amplifier (PGA) allowing full scale signals as small as +/-75mV to be resolved to 12 bit accuracy across 8 analogue inputs. Each channel is individually configurable for voltage or current input with its own programmable gain.