Athena manufactures serveral series of analog controllers designed for panel and subpanel PID temperature control, and accurate temperature control. The company builds a multi-loop PID controller that offers up to four loops of PID control with cascade and feed forward capabilities. Athena's temperature control family also includes several series of digital controllers and a series of limit controllers.

Thermalogic designs and manufactures temperature controls that accomodate requirements associated with OEM applications. The company's models include: non-indicating analag controls, from single to multiple zone controls; non-indicating microprocessor-based controls, for more complex applications; indicating microprocessor-based 1/8 DIN and 1/16 controls, for visual indication; and elaborate multi-zone, microprocessor controls, for applications where many parameters are controlled simultaneously.

Tempco manufactures digital and analog temperature controllers, high-limit temperature controls, encapsulated temperature controllers, and hot runner temperature control systems. The company has nine models of digital temperature controllers that are configurable for two to five programmable ouputs, depending on model. Tempco also offers nine analog temperature controllers.

Autonics Online manufactures a variety of temperature controllers including dual PID auto tuning type, simple operation type, standard type, and board type. The company also manufactures alaram/output, dual setting temperature controllers; analog setting/non-indicator, deviation temperature controllers; and cooling temperature controllers.