The global impact of COVID-19 on our people and the global economy is significant, and Watlow has taken a comprehensive approach to deal with the current crisis. Our contingency planning includes protecting our team members, communicating often with our customers and partners and maintaining the continuity of supply lines.

At the beginning of the pandemic, we set two priorities that guide our responses and decisions: the health and safety of our team members while continuing to supply essential products needed by our customers.

If you have questions about how the pandemic is impacting Watlow or Watlow’s response, please contact your Watlow representative.


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General Applications Tube and Wire

Our extensive line of thermocouples feature flexible SERV-RITE® wire insulated with woven fiberglass or high temperature engineered resins. For added protection against abrasion, products can be provided with stainless steel wire braid and flexible armor. ASTM E230 color-coding identifies standard catalog thermocouple types.

Mineral Insulated Thermocouples

Watlow's mineral insulated (MI) thermocouples are fast-responding, durable and capable of handling high temperatures.

RTDs (Resistance Temperature Detectors)

Watlow manufactures a variety of RTD sensors that are specially designed to ensure precise and repeatable temperature measurement. Watlow sensors are built to meet the most demanding industrial applications while providing a lower total cost of ownership for our customers.


Watlow offers several varieties of thermocouple connectors and systems including: -Standard thermocouple connectors -Quick-attach thermocouple connectors -High temperature connectors -Three-pole connectors for RTD applications -Miniature thermocouple connectors


The SERIES 5750 temperature transmitter yields remarkably accurate temperature measurements and improves reliability, which reduces downtime and costs. The SERIES 5750 offers new measurements with resistance temperature detectors (RTDs) in three and four-wire connections. It is designed to fit directly inside connection heads type DIN B or larger.


Fittings are available in the following types: -Non-adjustable compression type -Adjustable compression type -Adjustable spring-loaded -Adjustable bayonette compression -Fixed bayonette -Bayonette adapter -Pipe clamp with bayonette adapter

Connection Heads and Blocks

Connection heads are used to connect temperature sensors and extension wires. They protect the connection and allow access to the terminal block. Connection heads are available in various types including thermocouples, resistance temperature detectors (RTDs), thermistors and solid-state style sensors.

Protection Tubes

Protection tubes safeguard thermocouples from contaminating atmospheres or mechanical damage. They are closed at one end of the tube and the thermocouple and connection head are assembled and mounted into the process. The material chosen for the protection tube is determined by the type of application that the the thermocouple will be exposed to. Watlow offers a variety of ceramic and metal (pipe type) protection tubes designed to insulate and protect temperature sensors from high pressure, abrasive, corrosive and other harsh environments.


Manufactured from drilled bar stock, Watlow thermowells provide a pressure-tight connection at the point of installation. With thick walls, thermowells are sturdy enough to handle high pressure, high velocity and corrosive environments. They are frequently used in petrochemical and power plant applications. Highly critical or demanding applications may require thermowells not only for protection of the temperature sensor, but also to withstand high pressure, erosion or both, caused by material flows through vessels.

EZ-ZONE® RUI and Gateway

Watlow presents a remote user interface, the EZ-ZONE RUI and Gateway to be used as a communication gateway device when using two or more EZ-ZONE controllers.

EZ-ZONE® LabVIEW™ Driver

This instrument driver for National Instruments' LabVIEW™ software communicates with Watlow's EZ-ZONE suite of controller products via the standard bus communications protocol that is included with all EZ-ZONE controller products.


The EZ-ZONE GSD Editor software works in conjunction with Watlow’s line of EZ-ZONE controllers. The editor enables users to configure communications between products.

EHG® SL10 Software

Watlow temperature control software includes the EHG SL10 controller software that allows users to configure, monitor, log and chart datea from the EHG SL10 integrated controllers