Watlow
Heaters, Process Controllers, Thermocouples & Temperature Controllers
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About Watlow
Founded in 1922 by Howard Watlow
Watlow is a trusted brand across various industries that require precise thermal management solutions. It is widely used in sectors such as oil and gas, power generation, automotive, and pharmaceutical industries, where reliable heating, temperature control, and performance optimization are essential for maintaining operational efficiency and safety. Its advanced thermal solutions are also utilized in manufacturing, aerospace, and industrial applications, providing consistent performance even in harsh environments.
Watlow is a leading provider of thermal solutions, offering a comprehensive product line with over a quarter of a million designs on file. Unlike many companies that specialize in just one component, Watlow manufactures heaters, sensors, and controllers, ensuring seamless integration and performance accountability across all thermal systems. Watlow’s comprehensive range of products, including Electric Heaters, Temperature Controllers, Thermocouple and Sensors, ensures precise thermal regulation and system integration. With a commitment to Control Confidence®, Watlow’s controllers are built to endure harsh environments, including extreme heat, electrical noise, humidity, and vibration, ensuring long-lasting performance and reliability.
We are committed to delivering Watlow’s cutting-edge Thermal Management Solutions across the USA and internationally. Our services include comprehensive door-to-door shipping, covering all duties and taxes, ensuring seamless delivery to your operations. No matter where you're located in the USA or beyond, we provide reliable solutions to safeguard your industrial assets and enhance operational efficiency.
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Watlow Categories
Watlow offers a comprehensive range of products designed to provide reliable, precise, and efficient thermal management solutions across various industries. Their product categories include heaters, controllers, sensors, and human-machine interfaces (HMIs), all engineered to work seamlessly together. With a commitment to innovation and high-quality manufacturing, Watlow’s solutions are trusted for applications in various sectors.

Heaters
Watlow offers a wide variety of Electric Heaters, including Cartridge, Band, Tubular, and Flexible Heaters, designed for precise and efficient thermal management across different industries. These Heaters are built to meet specific performance and safety requirements for various applications.

Human-Machine Interfaces (HMI)
Watlow’s HMIs provide intuitive control and monitoring for thermal systems, offering easy integration and real-time data visualization. These interfaces enable operators to adjust parameters and ensure optimal performance in industrial environments.

Power Controllers
Watlow’s Power Controllers deliver accurate and efficient control of electrical power to heating elements, optimizing energy use and performance. These controllers are designed to handle high-power applications, ensuring reliable heat regulation in demanding environments.

Process Controllers
Watlow’s Process Controllers ensure precise temperature and system regulation by continuously monitoring and adjusting process variables. These controllers offer advanced features for temperature management and process optimization, enhancing productivity and reliability.

Process Heaters
Watlow's Process Heaters are engineered for continuous high-performance in industrial heating applications. They are designed to provide consistent heat across various industries, improving efficiency and reducing operational costs.

RTD Sensors
Watlow's RTD Sensors offer accurate temperature measurements, ideal for high-precision applications. These sensors provide reliable and consistent data, ensuring effective temperature control and monitoring in a variety of industrial environments.

Temperature Controllers
Watlow’s Temperature Controllers provide precise regulation of temperature settings in thermal systems. With advanced algorithms and customizable options, these controllers are designed to maximize heater efficiency and performance.

Thermocouples
Watlow’s Thermocouples are designed for accurate temperature measurement in extreme environments. They are durable, reliable, and ideal for monitoring temperature across a wide range of industrial applications.
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Watlow Applications
Watlow’s innovative thermal solutions are essential in a wide range of industries, offering advanced heating, sensing, and control technologies that drive efficiency and performance. With expertise in creating customized thermal systems, Watlow serves key sectors such as automotive, aerospace, energy, semiconductor, and more. Its products are designed to meet the highest standards, ensuring reliability and precision in critical applications.
Overview
In the food processing industry, precise temperature control is crucial for ensuring product quality, safety, and compliance with regulatory standards. Watlow provides innovative thermal solutions that deliver consistent temperature regulation throughout food production processes. Their advanced controllers, sensors, and heaters are designed to maintain optimal conditions, reducing energy consumption while ensuring food safety and product consistency.
Key Applications
- Oven and Fryer Heating: Watlow’s temperature controllers and heaters maintain the ideal cooking temperature for ovens and fryers, ensuring even cooking and energy efficiency.
- Sterilization and Pasteurization: Their thermal systems provide accurate temperature control in sterilization and pasteurization processes, ensuring food safety while maintaining product quality.
- Food Processing Equipment: Watlow’s solutions are widely used in various food processing applications, including baking, cooking, and refrigeration, to ensure precise temperature management and consistent output.
Overview
In the pharmaceutical industry, maintaining strict temperature control is essential for both product quality and regulatory compliance. Watlow’s comprehensive thermal solutions, including heaters, sensors, and controllers, ensure precise temperature regulation across critical pharmaceutical processes. Their products help meet stringent industry standards while promoting safety, consistency, and energy efficiency.
Key Applications
- Sterilization & Autoclaving: Watlow’s advanced controllers and heating solutions are used in sterilization systems, ensuring proper temperature and pressure for effective sterilization of pharmaceutical equipment.
- Temperature Regulation in Production: Their sensors and controllers maintain the ideal temperature for the production of pharmaceutical ingredients, ensuring batch consistency and quality.
- Cleanroom Applications: Watlow’s products also support cleanroom environments by providing consistent and reliable temperature regulation to meet the demands of pharmaceutical manufacturing processes.
Overview
In the energy industry, precise control and regulation of temperature are critical for optimizing performance and ensuring safety across various processes. Watlow offers a range of thermal solutions, including heaters, controllers, and sensors, designed to meet the demanding requirements of the energy sector. Their products help enhance operational efficiency, reduce downtime, and improve energy management in energy production and distribution.
Key Applications
- Power Generation: Watlow’s heaters and controllers are used to maintain optimal temperatures in power plants, including applications like steam generation and turbine maintenance.
- Oil & Gas: In upstream and downstream oil & gas operations, Watlow’s products support safe, reliable thermal management in pipelines, tanks, and critical equipment exposed to extreme conditions.
- Renewable Energy: Watlow’s solutions are also applied in renewable energy systems, including solar and wind energy installations, to improve efficiency in energy production and storage systems.
Overview
In the semiconductor industry, precise thermal control is critical to the manufacturing process, where temperature management plays a key role in ensuring product quality and consistency. Watlow’s solutions, including heaters, controllers, and sensors, are designed to meet the high-precision needs of semiconductor production. Their thermal systems help optimize performance, enhance product yield, and maintain the reliability of sensitive semiconductor equipment.
Key Applications
- Wafer Processing: Watlow’s advanced temperature controllers and sensors provide precise thermal regulation for processes like wafer etching, ion implantation, and deposition, ensuring high yield and quality.
- Chamber Heating: Watlow’s custom-designed heaters are used in semiconductor processing chambers to maintain consistent temperatures, crucial for processes like chemical vapor deposition (CVD) and sputtering.
- Thermal Testing: In semiconductor testing and burn-in applications, Watlow’s thermal solutions ensure stable, accurate temperature environments, critical for reliable product testing and performance validation.
Overview
In the medical industry, precise temperature control and thermal management are essential for ensuring the safety, reliability, and accuracy of medical devices and equipment. Watlow’s solutions, including heaters, sensors, controllers, and other thermal systems, are designed to meet the strict standards required for medical applications. Their products help enhance the performance and safety of medical devices, improving patient outcomes while maintaining compliance with regulatory standards.
Key Applications
- Therapeutic Equipment: Watlow’s temperature controllers and sensors are used in medical devices such as heating pads, incubators, and warming blankets, ensuring accurate and reliable thermal therapy for patients.
- Sterilization Equipment: Watlow’s heaters and controllers play a crucial role in autoclaves and sterilization chambers, providing consistent and precise temperatures necessary for effective sterilization processes.
- Diagnostic Equipment: Watlow’s thermal solutions are integrated into diagnostic equipment like blood analyzers and laboratory instruments, ensuring accurate temperature regulation during critical testing procedures.
Overview
In the industrial manufacturing industry, precise control of temperature and thermal systems is essential for optimizing production processes, ensuring product quality, and maintaining operational efficiency. Watlow offers a wide range of thermal solutions, including heaters, controllers, sensors, and temperature regulators, to meet the needs of diverse manufacturing applications. Their products support the continuous improvement of manufacturing systems by enhancing reliability and precision in high-demand environments.
Key Applications
- Process Heating: Watlow’s industrial heaters and controllers are used in various process heating applications, such as ovens, dryers, and furnaces, to maintain consistent temperatures for material processing and curing.
- Injection Molding: Watlow provides temperature control solutions for injection molding equipment, ensuring stable and accurate heating for precise molding of plastics and metals.
- Surface Treatment: Watlow’s thermal systems support surface treatment applications, including coating, plating, and heat treating, helping manufacturers achieve high-quality finishes and material properties.
- Aircraft Engine Components: Watlow’s heating solutions are used in aircraft engines for temperature control in critical components, ensuring performance and reliability under extreme conditions.
- Avionics and Electronics: Watlow provides thermal management solutions for avionics and electronic systems, maintaining optimal temperatures to prevent overheating and ensure operational integrity.
- Thermal Testing: Watlow’s precise temperature controllers and sensors are used in thermal testing equipment, helping aerospace manufacturers conduct accurate and reliable tests on components before deployment.
- Battery Thermal Management: Watlow’s heating elements and controllers are used in electric vehicle (EV) battery packs to maintain optimal temperature ranges for efficient performance and safety.
- Exhaust Gas Recirculation (EGR) Systems: Watlow’s thermal solutions help control the temperature in EGR systems, ensuring the efficient reduction of emissions while maintaining engine performance.
- Automotive Testing: Watlow’s sensors and controllers are used in automotive testing equipment, helping manufacturers evaluate vehicle components under controlled temperature conditions for quality assurance.
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Why Choose 212 Instruments?
Best Prices Guaranteed: We offer the best prices online for a wide range of Watlow instruments including Heaters, Process Controllers, Thermocouples & Temperature Controllers ensuring you get top-quality products at unbeatable value.
Efficient Lead Times: While some Watlow instruments may have specific lead times, we strive to reduce them as much as possible. Our dedicated team ensures transparent communication regarding product availability and delivery schedules, keeping you well-informed at every step so you can plan your operations with confidence and avoid any unexpected delays.
Worldwide Shipping: Whether you're located in the USA or internationally, our extensive shipping network guarantees fast and reliable delivery of Watlow Instruments. We offer door-to-door service, covering all duties and taxes, so your equipment arrives hassle-free, no matter where you are. With a focus on efficient logistics, we ensure timely shipments to meet your operational needs.







