Manufacturer of Industrial Electric Heaters, Sensors, and Controllers
Watlow designs and manufactures industrial heaters, temperature sensors, controllers and supporting software as well as assemblies – all of the components of a thermal system. The company partners with its customers to optimize thermal performance, decrease design time and improve the efficiency of their products and applications.
Watlow brings its experience to numerous industries, including semiconductor processing, environmental chambers, energy processes, diesel emissions, medical and foodservice equipment.
Watlow Solutions
“A Day in the Life” of Watlow Products
Semiconductor Processing
Watlow’s thermal systems are used to precisely control temperature at critical interfaces in the manufacturing of integrated circuits. Within the process chamber our innovations impact important parameters such as system cycle time and temperature uniformity such that wafers can be processed faster and with higher quality.
Chambers / Furnaces / Ovens
Watlow’s heater, sensor and controller products can be easily customized to fit the exacting specifications of the chambers / furnaces / ovens market, without the high cost and long wait times of many custom products. Watlow’s solutions are ready to use, but are modular, scalable and flexible. Watlow offers many benefits to the industry including one-stop thermal shopping, technical expertise and highly reliable solutions.
Life Sciences
With 50 years of experience in the life sciences’ industries, Watlow is a leader in designing, manufacturing and supporting sophisticated thermal solutions to meet medical advancements and new industry requirements. Watlow’s engineered thermal solutions improve diagnosis accuracy and patient comfort. Watlow provides solutions for patient care equipment, surgical devices, clinical diagnostic instruments and more.
Energy Processes
Watlow uses its thermal expertise to improve the performance, life and safety of processing equipment while reducing the overall cost of ownership. We supply thermal products, as well as engineering design services for many applications including carbon capture and sequestration (CCS), enhanced oil recovery (EOR), nuclear power, catalytic cracking and regeneration, natural gas processing and others.
About Watlow
Since 1922, Watlow has grown in product capability, market experience and global reach. The company holds more than 450 patents and employs 2,000 employees working in nine manufacturing facilities and three technology centers in the United States, Mexico, Europe and Asia. Watlow also has sales offices in 16 countries around the world. The company continues to grow, while the commitment remains the same – to provide its customers with superior products and services for their individual needs.
Watlow Advanced Technology Center
Some links that you might find useful:
Ohm’s Law (interactive)
3-Phase Calculator (interactive)
Conversion Formulas
Amperage Conversions
Quick Wattage Estimator
International Color Coding for Thermocouples
Thermocouple Types with descriptions



