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Pressure Sensors & Precision Pressure Measurement Solutions
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Keller -Precision Pressure Measurement Solutions

Keller -Precision Pressure Measurement Solutions

Keller was founded in 1974 by Hannes W. Keller in Winterthur, Switzerland. As a pioneer in pressure measurement technology, the company has grown into one of the world’s leading manufacturers of pressure sensors and transmitters. Keller’s products are known for their precision, reliability, and adaptability across a wide range of industries. Their solutions are used in applications such as industrial automation, water and wastewater management, oil and gas, aerospace, automotive, and medical technology.
Keller’s instruments including Pressure Transmitters, Data Loggers, Level Sensors, & Pressure Calibrators play a vital role in maintaining operational efficiency and system safety across various industries. Their pressure sensors are utilized in applications such as regulating aircraft cabin pressure, ensuring smooth fuel transitions in hybrid vehicles, and serving as reference sensors in laboratory technology. Additionally, Keller’s products are employed in groundwater and level measurement, engine test benches, and monitoring pressure peaks in the oil and gas industry, providing protection in explosive environments like hydrogen production.
We are dedicated to delivering Keller’s Precision Pressure Measurement solutions across the UK, Ireland, and internationally. Our services include comprehensive, door-to-door shipping with all duties and taxes covered, ensuring a smooth, hassle-free delivery to your site. Wherever you are in the UK or Ireland, we provide dependable solutions designed to protect your industrial assets and boost operational efficiency.
We operate fully registered companies in both the UK and Ireland (EU), enabling us to efficiently manage shipping to all European Union member countries and non-EU destinations. Our pricing includes door-to-door delivery with all duties and taxes covered, ensuring a seamless and hassle-free experience for our customers.
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At qinstrument, we are committed to offering the best price guaranteed on all our Test & Measurement Equipments.

At qinstrument, we are committed to offering worldwide shipping to meet your needs wherever you are.
Keller Instruments Applications
Keller’s pressure measurement solutions are integral to various industries. In the automotive sector, their sensors facilitate exhaust pressure measurements, gearbox and brake control, and engine test monitoring. In aviation, Keller provides pressure sensors that help regulate cabin pressure, control pilots’ emergency oxygen supply, and check fuel pumps. In the oil and gas industry, their products monitor pressure peaks, ensuring safety in volatile environments. Additionally, Keller’s sensors are employed in consumer products, such as monitoring pressure in scuba tanks and measuring temperatures in microwaves.
Overview:
In the vehicles industry, precise measurement of pressure is critical for ensuring the safety, performance, and efficiency of various vehicle systems. Keller’s solutions provide accurate and reliable pressure measurements for a wide range of automotive applications, contributing to the enhancement of vehicle safety, fuel efficiency, and overall performance. .
Key Applications:
- Tire Pressure Monitoring: Ensuring proper tire inflation levels to maintain vehicle safety, optimize fuel efficiency, and reduce tire wear.
- Brake System Monitoring: Measuring pressure in brake systems to ensure optimal braking performance and safety.
- Fuel System Pressure Measurement: Monitoring fuel pressure to optimize fuel efficiency and engine performance.
- HVAC Systems: Measuring and controlling pressure in vehicle heating, ventilation, and air conditioning systems for optimal comfort.
- Transmission and Engine Systems: Providing pressure measurements in transmission and engine systems to enhance performance and prevent damage.
Overview:
In the aviation and space travel industry, precise pressure measurements are crucial for ensuring the safety, performance, and reliability of aircraft and spacecraft. Keller’s pressure transducers and transmitters provide highly accurate, durable, and stable measurement solutions, even in the most demanding conditions, helping to maintain operational efficiency and meet regulatory standards.
Key Applications:
- Aircraft Systems: Monitoring and controlling pressure in critical systems such as fuel, hydraulic, and pneumatic systems to ensure optimal performance and safety.
- Cockpit Pressure Control: Measuring and regulating cabin pressure to maintain comfort and safety for passengers and crew.
- Spacecraft Pressure Monitoring: Ensuring accurate pressure readings in spacecraft to maintain life-support systems and control environments during launches and space missions.
Overview:
In the oil and gas industry, precise measurement of pressure, temperature, and flow is critical for maintaining operational efficiency, ensuring safety, and complying with industry regulations. Keller’s pressure transducers and measurement solutions provide reliable and accurate data for various processes in oil and gas exploration, production, and refining.
Key Applications:
- Wellhead Pressure Monitoring: Accurate measurement of pressure at the wellhead to ensure safe and efficient extraction operations.
- Pipeline Monitoring: Real-time monitoring of pressure and flow in pipelines to detect potential leaks and prevent catastrophic failures.
- Reservoir Pressure Monitoring: Monitoring pressure in reservoirs to optimize oil and gas recovery while minimizing environmental risks.
Overview:
In the Water and Environmental Management industry, precise monitoring of pressure, temperature, and flow is crucial for ensuring the sustainability of water systems and protecting the environment. Keller’s high-precision pressure transducers and sensors are essential tools for monitoring water quality, waste management, and environmental conditions. Their products offer reliable measurements to help in water treatment processes, stormwater management, and environmental monitoring.
Key Applications:
- Water Quality Monitoring: Ensuring accurate pressure and temperature measurements in water treatment plants to maintain optimal conditions for clean water production.
- Flood and Stormwater Management: Monitoring pressure and water levels in rivers, lakes, and drainage systems to detect potential flooding and manage stormwater effectively.
- Groundwater Monitoring: Providing reliable data on groundwater levels and pressure to support sustainable water extraction and environmental conservation.
- Environmental Impact Assessment: Monitoring pressure and flow in various ecosystems, ensuring the prevention of pollution, and maintaining the health of aquatic habitats.
Overview:
In the HVAC (Heating, Ventilation, and Air Conditioning) industry, accurate measurement of pressure, temperature, and flow is crucial for maintaining energy efficiency, ensuring indoor air quality, and optimizing system performance. Keller’s pressure sensors and transducers offer reliable solutions to monitor and control key parameters in HVAC systems, enhancing comfort and efficiency in residential, commercial, and industrial environments.
Key Applications:
- Pressure Monitoring in Duct Systems: Ensuring accurate pressure measurements in air ducts and ventilation systems to maintain proper airflow and energy efficiency.
Temperature and Pressure Control: Monitoring pressure and temperature within heating and cooling units to ensure optimal operation and energy consumption.
Flow Measurement: Accurately measuring the flow of air or fluids through HVAC components to ensure proper system balance and reduce energy wastage.

At qinstrument, we are committed to offering the Genuine Test & Measurement Equipments.
Keller Available Product Part Numbers with Categories
Data Loggers
Keller DCX-22 Level Logger |
Keller DCX-16 Level Logger |
Keller DCX-25 PVDF Autonomous Data Logger |
Keller DCX-38 VG Level Logger |
Keller DCX-22AA Level Logger |
Keller DCX-22-CTD Level Logger |
Keller DCX-22AA-CTD Level Logger |
Level Instruments
Keller Acculevel Submersible Level Transmitter |
Keller Nanolevel Submersible Level Transmitter |
Keller LevelRat Submersible Level Transmitter |
Keller Levelgage Submersible Level Transmitter |
Keller Microlevel Submersible Level Transmitter |
Keller Castello Tank Contents Measurement System |
Keller 36XW Level Transmitter |
Keller 46X Level Transmitter |
Pressure Calibrators
Keller HPX High-Pressure Calibrator |
Keller MPX Low-Pressure Calibrator |
Pressure Gauges
Keller LEX1 Digital Pressure Gauge |
Keller ECO 2 Digital Pressure Gauge |
Keller LEO 3 Digital Pressure Gauge |
Keller LEO2 Digital Pressure Gauge |
Keller LEO Record Digital Manometer |
Keller LEO1 Pressure Gauges |
Keller LEO5 Digital Pressure Transmitter |
Pressure Transmitters
Keller PD-23X High-Precision Differential Pressure Transmitter |
Keller Series 41X Capacitive Pressure Transmitter |
Keller Series 33X-Ed Pressure Transmitter |
Keller Series 23-Ed Pressure Transmitter |
Keller Valueline High Accuracy Pressure Transmitter |
Keller Preciseline High Accuracy Pressure Transmitter |
Keller Econoline General Purpose Pressure Transmitter |
Keller 35X HTC Pressure Transmitter |
Keller 35X HT / 35X HTT Pressure Transmitters |
Keller Series M5 Pressure Transducer |
Keller 23 Ed / 25 Ed Pressure Transmitters |
Keller Series M5 HB Pressure Transmitter |
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Why Choose Qinstrument?
Best Prices Guaranteed: We offer the best prices online for a wide range of Keller Pressure Transmitters, Data Loggers, Level Sensors, & Pressure Calibrators 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 UK, Ireland (EU) 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.


About Qinstrument
Qinstrument provides top-tier test and measurement solutions from renowned brands like Bently Nevada, Druck, Fluke, Rosemount, Emerson, Net Safety, Teledyne FLIR, and Panametrics. We serve the UK and EU, offering hassle-free delivery without any additional taxes or duties, ensuring seamless service across all regions.