The EZ-ZONE ST integrated control loop is the first product to integrate temperature control, power control, safety shut-down and power disconnect in a single package. It features a PID temperature controller already connected to a high amperage solid state relay (SSR) with the option of adding a properly sized heat sink, current measurement, an over/under temperature limit, a definite purpose mechanical contactor and digital communications in one package. The user has the option of adding one or more remote user interface (RUI) displays. The RUI is a 1/16 DIN and can be mounted at the front of the equipment for easy use. The RUI also features an "EZ key" which can be customized to perform repeatable functions for the user. Watlow's integrated control loop decreases design and assembly time, minimizes system complexity and lowers total cost of ownership. The EZ-ZONE ST can be stacked into multiple configurations giving the flexibility to standardize on the products platform to solve a wide range of application needs. Additional features of the EZ-ZONE ST include back panel or DIN-rail mounting, a touch safe package, +/- 0.1 percent temperature accuracy and a three-year warranty. EZ-ZONE ST integrated control loop can be used in applications such as plastics processing, packaging, environmental chambers, semiconductor processing, analytical instrumentation and general equipment use.