Keller
Level Instruments, Pressure Gauges & Pressure Transmitters
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About Keller
Founded in 1974 by Keller Druckmesstechnik
Keller is a well-established brand, recognized for its precision pressure and level measurement solutions across a wide range of industries. Its products are widely used in sectors such as oil and gas, chemical processing, power generation, and pharmaceuticals, where accurate pressure and level measurements are crucial for maintaining process efficiency and regulatory compliance. Keller’s advanced sensors and transmitters are also integral to industries like automotive, aerospace, and manufacturing, ensuring the reliability of equipment and optimized performance.
Keller America Inc. is a leading provider of precision level and pressure sensing solutions, offering a range of advanced products, including Level Instruments, Pressure Gauges, and Pressure transmitters. Known for their innovation and high-performance standards, Keller’s Level Instruments ensure accurate and reliable measurements in various industries. Their Pressure Gauges deliver robust, real-time pressure monitoring, even under extreme conditions, making them ideal for applications in many sectors. Keller’s Pressure Transmitters, capable of measuring pressures from as low as 4 inches of water to as high as 29,000 PSI, provide highly accurate readings for critical operations across industries. Keller's commitment to developing tailored solutions ensures optimal performance and reliability across a broad range of applications.
We are committed to delivering Keller’s cutting-edge Level and Pressure Sensing 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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Keller Categories
Keller offers a comprehensive range of high-precision measurement solutions designed to meet the demands of various industries. Their product categories include Data Loggers, Level Instruments, Pressure Calibrators, Pressure Gauges, and Pressure Transmitters, each crafted to provide reliable and accurate performance.

Data Loggers
Keller’s Data Loggers offer precise and reliable recording of pressure, temperature, and other process parameters over time. They are widely used in industries requiring continuous monitoring and data tracking for analysis and compliance.

Level Instruments
Keller’s Level Instruments provide accurate and dependable level measurements for a variety of liquids and solids. They are designed for industries like water treatment, chemical processing, and food production where precise level control is critical.

Pressure Calibrators
Keller’s Pressure Calibrators are essential tools for ensuring the accuracy of pressure measurement devices. These calibrators are used for both field and laboratory applications, offering a high level of precision and versatility.

Pressure Gauges
Keller’s Pressure Gauges are known for their robustness and reliability, providing real-time pressure monitoring in harsh environments. They are ideal for industries like oil and gas, chemical processing, and HVAC systems.

Pressure Transmitters
Keller’s pressure transmitters offer high-performance, precision pressure measurement with a wide range of applications. They are used in sectors such as aerospace, water treatment, and manufacturing for monitoring and controlling pressure levels.
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Keller Applications
Keller’s products are widely used across various industries for accurate and reliable measurement solutions. Their advanced pressure sensors, level instruments, and transmitters are essential for applications in environmental monitoring, oil and gas, water treatment, and manufacturing. Keller’s technology enables precise data collection, ensuring operational efficiency, safety, and compliance with industry standards.
Overview
In the oil and gas industry, precise measurement of pressure and level is crucial for operational efficiency, safety, and compliance with regulations. Keller’s pressure transmitters and level instruments offer reliable and accurate measurements, even in harsh and high-pressure environments. Keller’s products help monitor and control critical processes such as drilling, refining, and transportation of oil and gas.
Key Applications:
- Wellhead Monitoring: Keller’s pressure and level sensors are used for monitoring pressure at wellheads and other critical points in oil and gas extraction processes to ensure safe operation.
- Pipeline Pressure Monitoring: Keller’s pressure transmitters are essential for monitoring pipeline pressure, preventing leaks, and ensuring safe, continuous transportation of oil and gas.
- Tank Level Measurement: Accurate measurement of liquid levels in storage tanks and separators is ensured with Keller’s level instruments, helping to maintain operational efficiency.
Overview
In the water and wastewater industry, accurate pressure and level measurement are essential for ensuring the safe and efficient treatment of water. Keller’s pressure transmitters and level instruments are designed to withstand challenging environments while providing precise and reliable measurements. Keller’s solutions contribute to optimized water treatment processes, from municipal systems to industrial facilities.
Key Applications:
- Pump Station Monitoring: Keller’s pressure transmitters are used to monitor pressure in pump stations, helping to ensure the efficient operation and maintenance of water distribution systems.
- Wastewater Treatment: Keller’s level sensors are critical in wastewater treatment plants for monitoring tank levels and controlling the flow of wastewater to prevent overflow and maintain treatment efficiency.
- Pipeline Pressure Monitoring: Keller’s pressure gauges and transmitters ensure accurate monitoring of pipeline pressure in water and wastewater systems, preventing damage and ensuring continuous flow.
Overview
In the pharmaceutical industry, precise measurement of pressure and level is essential to ensure product quality and compliance with stringent regulatory standards.
Keller’s advanced pressure transmitters and level instruments provide accurate and reliable measurement solutions for critical pharmaceutical processes. Their robust and highly precise sensors are designed to meet the exacting requirements of this highly regulated industry.
Key Applications:
- Sterile Process Control: Keller’s pressure transmitters are used to monitor pressure in cleanrooms and sterilization processes, ensuring product safety and regulatory compliance.
- Tank Level Measurement: Keller’s level instruments are essential for accurately measuring the liquid levels in reactors and storage tanks, maintaining consistent production and preventing overflows.
- Fluid Flow Control: Keller’s sensors are also used in fluid systems to monitor and control the flow of pharmaceutical liquids, ensuring precise dosages and minimizing waste.
Overview
In the chemical and petrochemical industry, accurate measurement of pressure, level, and flow is crucial for process efficiency, safety, and regulatory compliance. Keller’s precision pressure transmitters, level instruments, and sensors are designed to deliver reliable and robust measurements in these challenging environments. Keller’s advanced technologies ensure consistent monitoring, process optimization, and protection of critical equipment in chemical and petrochemical operations.
Key Applications:
- Pressure Monitoring: Keller’s pressure transmitters are used in chemical reactors, pipelines, and pressure vessels to monitor and maintain optimal pressure levels, ensuring safe and efficient operations.
- Level Measurement: Keller’s level instruments provide accurate monitoring of liquid and gas levels in storage tanks, separators, and process vessels, ensuring safe material handling and preventing overflows.
- Flow Control: Keller’s sensors are essential for measuring and controlling the flow of liquids and gases in pipelines and production systems, optimizing resource utilization and preventing process disturbances.
Overview
In the aerospace industry, precise measurement of pressure, temperature, and level is essential to ensure the safety, reliability, and performance of critical systems. Keller’s cutting-edge pressure transmitters, sensors, and level instruments provide accurate measurements for demanding aerospace applications, meeting stringent industry standards. Keller’s technologies support the development and maintenance of aircraft and spacecraft systems, enhancing operational efficiency and safety.
Key Applications:
- Pressure Monitoring: Keller’s pressure sensors are used in hydraulic systems, fuel systems, and avionics to monitor pressure levels, ensuring the safe and efficient operation of aircraft and spacecraft components.
- Level Measurement: Keller’s level instruments are deployed in fuel tanks, water systems, and lubrication systems to maintain precise fluid levels, preventing failures and optimizing system performance.
- Altitude Sensing: Keller’s pressure transmitters play a critical role in altitude sensing systems, providing accurate pressure readings to support navigation and flight control systems.
Overview
In the manufacturing and industrial sectors, precise measurement of pressure, temperature, and level is critical for maintaining operational efficiency, reducing downtime, and ensuring safety. Keller’s advanced pressure sensors, transmitters, and level instruments are designed to meet the rigorous demands of industrial environments, offering accurate and reliable performance to optimize production processes.
Key Applications:
- Pressure Monitoring: Keller’s pressure transmitters are utilized in manufacturing equipment, hydraulic systems, and production lines to monitor and control pressure, preventing equipment damage and maintaining optimal performance.
- Level Measurement: Keller’s level sensors are used in tanks, silos, and reactors to ensure accurate fluid and material levels, enabling automated control systems and reducing manual monitoring errors.
- Process Control: Keller’s pressure and level measurement solutions provide real-time data for process control, helping to enhance productivity, reduce energy consumption, and improve quality control in industrial settings.
Key Applications:
- Pressure Monitoring: Keller’s pressure transmitters are used to measure and control the pressure in systems such as bottling, brewing, and pasteurization, ensuring the safety and quality of products.
- Level Measurement: Keller’s level sensors are used in storage tanks, silos, and fermenters to accurately measure liquid and material levels, reducing the risk of overflows, spills, and shortages in production.
- Temperature Control: Keller’s solutions integrate with temperature monitoring systems in cooking, refrigeration, and storage processes to ensure the proper conditions are maintained for food safety and quality.
- Groundwater Monitoring: Keller’s level sensors are used to measure water levels in wells, lakes, and rivers, ensuring accurate data for environmental studies and resource management.
- Air Quality Monitoring: Keller’s pressure transmitters and sensors are employed in monitoring air pressure and temperature, helping to maintain accurate atmospheric measurements and support climate studies.
- Flood and Stormwater Management: Keller’s solutions are used for measuring water levels in stormwater systems and flood-prone areas, assisting in flood prediction and management to reduce environmental risks.
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Why Choose 212 Instruments?
Best Prices Guaranteed: We offer the best prices online for a wide range of Keller instruments, including Level Instruments, Pressure Gauges & Pressure Transmitters ensuring you get top-quality products at unbeatable value.
Efficient Lead Times: While some Keller 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 Keller 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.







