Integrated multi-function products are modular and consistent in features, capabilities and specifications across the range of models. Using this product family helps users adapt to changing requirements because options can be added and models can be switched with minimal investment in learning, design, documentation, startup, commissioning and training. .

EZ-ZONE® controllers allow control loops and limits to be added in single increments as well as a variety of power switching options. They also allow for easy transfer of wiring from one product to another (consistent termination labeling)

  • Wide range of rated currents
  • Consists characteristics at different temperature condition
  • High resistance to aging


Watlow's temperature and process controllers offer easy-to-use, accurate and reliable solutions for applications requiring single and multiple loops of control.

Temperature and process controllers include one or more sensor inputs with open-loop break detection and multiple outputs for control and alarms. Various configurations offer auxiliary analog inputs, automatic tuning, TRU-TUNE®+ adaptive control, and ramp and soak profiling.

EZ-ZONE controllers offer additional features and options including application blocks with timers and counters, on-board data logging, SENSOR GUARD backup to protect loads should a sensor fail, AUTO CLONE™ automatic configuration backup and restore, standard bus communications, wide ambient-temperature operating range, Class I, div 2 rating, SD card expandable memory, USB connectivity and free configuration software.


Watlow single- and multi-loop limits provide cost-effective solutions for single- and multi-channel, temperature monitoring. Limits monitor the process value where thermal system protection is needed, closing a contact output for normal operation and opening that contact to shut down the process or equipment when the value is outside the safe range.

Various configurations offer user-selectable or fixed-configuration sensor options including thermocouple, process, RTD and thermal switch inputs as well as user-settable or fixed limit values. Models with displays have user-selectable temperature units


Power switching devices provide convenient DIN-rail mount packages and are a good replacement for mercury displacement relays. Various configurations offer short circuit current ratings (SCCR) of 200,000 amperes, extensive system and heater diagnostic capabilities, heater bake out, integrated heat sinks, on-board fuses, RoHS compliance and serial communications.

It offers an integrated temperature and process controller with optional over- and under-temperature limit and safety shutdown contactor.

  • Highly efficient
  • Quality product
  • Highly reliable


Operator Interface are all terms used to describe equipment that allows an operator or system user to manipulate or control a machine or process.They are usually attached to some type of controller, such as a PLC, through a communication link.

It offers reliable, affordable, easy-to-use interfaces for machines and systems. The Silver Series EM touchscreen operator interface terminals feature e-mail, USB, data logging, password security and multiple languages. The EZ-ZONE RUI remote user interface fits in tight spots, its EZ-Key reduces repetitive tasks to one touch and the gateway options connect EZ-ZONE products with other automation equipment and software. Paired with Watlow controllers, these interfaces are the perfect solution for process and machine control applicatio


indicators are ideal for displaying measurements of temperature and other process variables such as flow, pressure and relative humidity. They are moisture resistant and include bright, four-character LED displays, user-selectable temperature units, sensor break protection, agency approvals including UL®, CE, RoHS compliance and multiple mounting options such as DIN-rail or panel mount configurations.


Datalogger is an electronic device that is used to store data over time, commonly known as data logging. This includes many data acquisition devices such as plug-in boards or serial communication systems which use a computer as a real time data recording system

Data loggers reduce labor, increase accuracy and help companies comply with regulatory requirements by automating data collection.These products make it easy to add data acquisition to existing processes, make data available to analytical software in spreadsheet compatible files, allow data to be grouped in user-defined batches and incorporate operator comments and other information into reports


Software products provide interfaces to controllers and other automation equipment that is more powerful and flexible than built-in product interfaces and yet fast to set up and easy to use.


Watlow provides a selection of accessories from communications gateways to fuses that help improve the usability and flexibility of Watlow products while assuring the safety of your application.