The TSX AEY 420 module is a high level 4-input industrial measurement device.

Used in conjunction with sensors or transmitters, it performs monitoring, measurement and continuous process control functions.

For each input, the TSX AEY 420 module provides a range of +/-10 V, 0..10 V, 0..5 V, 1..5 V, 0..20 mA or 4..20 mA, depending on selections made during configuration.