This module lets you interface your Arduino/Raspberry Pi or any other micro controller with Industrial Sensors and Devices with a 4-20mA output. Interfacing these devices with Arduino/Raspberry Pi has always been tough and complex due the the external circuits, tuning required to convert the current signal to an analog voltage. This board takes care this and converts the 4-20mA(or 0-20ma) current signal to a 0-5V or 0-3.3V or 0-10V analog output voltage which can be directly connected to the ADC pin of the micro controller. Connections are easy and simple with the onboard screw terminal connectors!