Batch controllers maintain the correct size of a discrete batch of process material, such as the volume of a liquid.

Flow controllers monitor and maintain flow-rate variables, typically in process applications

Level controllers monitor, regulate, and control liquid or solid levels in a process

Motor controllers receive supply voltages and provide signals to motor drives that are interfaced to motors.

Programmable automation controller (PAC) modules are add-on devices that perform a specific control function in PAC systems

Humidity controllers monitor and maintain proper humidity levels in environmental test applications, food storage areas, and electronic equipment rooms

Programmable automation controller (PAC) systems consist of PAC modules, each of which performs a specific function.