A2D4 (4-20): 4x 4-20mAmp analog ports module 

A 4-20mAmp analog-input module can be added to a sensorProbeX+ (SPX+) environment monitoring appliance for the purpose of adding 4x 4-20mAmp analog-input ports.

4-20mAmp analog ports are used for connecting third party analog sensors with a 4-20mAmp scale output.

Many industrial sensors are available with this scale output, opening up the possibilities of monitoring many different sensors not provided by AKCP.