Instrumentation, Measurement & Control

  • Alco Valves

    Alco Valves

    Founded in the United Kingdom September 1977, Alco Valves Ltd. was incorporated with the express purpose of manufacturing a comprehensive range of technically advanced, precision made, high integrity valve products and accessories such as ball, needle, check and plug valves, as well as mainifolds. The latest engineering techniques and standards are applied in Alco’s ‘in-house’ machining facility and computerised drawing offices. With over thirty years of success behind it, Alco Valves has expanded to form the XAMOL Group, comprising of six companies, operating in over thirty countries world-wide with it’s own office locations and partnerships around the world.


  • Ametek US Gauge

    Ametek US Gauge

    Centro is an authorized distributor of AMETEK - U.S. Gauge. Ametek is a world-leading supplier of high-quality pressure gauges, diaphragm seals, temperature gauges,  bi-metal thermometers, chemical seals, and thermowell fittings. 


  • Ashcroft


    Centro is an authorized distributor of Ashcroft, a leading distributor in pressure and temperature measurement instruments for use in the steam industry.

    Centro offers Ashcroft products including pressure sensors, transducers, transmitters, pressure gauges, pressure switches, bi-metal thermometers, diaphragm sels, calibration instruments, and much more. 




    Based on more than 20 years of experience, Bebco EPS purge and pressurization by Pepperl+Fuchs is a household name in the process automation industry. As the leaders in Purging Technology®, they manufacture innovative solutions to meet the needs of your application. Their technology not only provides purge and pressurization especially easy to use, it also continuously monitors the conditions in the enclosure, makes automatic adjustments, and gives output alarms for reliable protection. Get to know the smartest way to ensure hazardous location protection and configure your individual purge and pressurization system!


  • Bindicator


    Bindicator is a full service supplier of point and continuous level sensors for industrial applications. Whether you need to monitor and measure your dry bulk levels or require a level sensor that can withstand heavy-duty construction, Bindicator has a range of sensors that make sensing easier.


  • Conoflow


    ITT Conoflow designs and manufactures natural gas vehicle (NGV), low pressure and high pressure regulators along with filter and specialty regulators. Their positioners, transducers, actuators and diaphragm seals come in a wide variety of materials and configurations to meet your broad range of application needs. ITT Conoflow serves the chemical processing, CNG market, food and beverage, petroleum, medical, pulp and paper and other global markets.


  • DK-LOK


    DK-LOK® fittings and valves are manufactured to the most stringent industry standards. As a result, DK-LOK® is one of the most certified tube fitting and valve manufacturers in the world. They guarantee a leak-tight seal in process, power, and instrumentation applications. Their commitment is to provide clients reliable products and unparalleled customer service.


  • Dwyer/Mercoid


    Since the company was founded in 1931, customers have come to recognize Dwyer Instruments to stand for quality, reliability, and readily available low cost products. As a leading manufacturer in the controls and instrumentation industry, Dwyer continues to grow and serve major markets including, but not limited to HVAC, chemical, food, oil and gas, and pollution control.


  • Ecom


    For over 20 years, ECOM America has been the leading manufacturer of portable emission combustion analyzers. Their instruments provide reliable and accurate results for most combustion applications in the market, and their team’s commitment to safety, compliance and service is unparalleled.


  • Ernst Flow Industries

    Ernst Flow Industries

    Ernst Flow Industries is dedicated to delivering the highest quality liquid level indicator and flow gauge products available on the market, backed by the level of service that is synonymous with the Ernst® name. Their product and industry knowledge provides customers with the answers they need to purchase the best liquid level measurement and flow gauge instruments. From pressure gauges and water flow meters to boiler gaskets and sight gauge glass, Ernst has everything you need to maintain or upgrade equipment at your facility.


  • Eurotherm


    Centro is an authorized distributor of Eurotherm by Schneider Electric. Eurotherm is your go-to supplier for automation and information technologies. From systems to software solutions and services, they cover everything in order to help you out.

    Eurotherm provides a wide variety of products that are rich in features and designed to make your life easier. The product range is easy to operate with potentially reduced engineering time. Eurotherm offers a range of control algorithms, recording, data management strategies which improve quality, reduce waste and ensure data is safely stored over time.


  • Flowline


    Flowline offers the best ultrasonic, float and pressure level measurement solutions for your chemical, water and wastewater tank requirements.


  • Foxboro


    Centro distributes Foxboro, a world-leading technology innovator in instrumentation and control. Foxboro manufactures SCADA systems, industrial wireless technologies, and more.

    Schneider Electric has owned the Foxboro brand since 2014. Their long history of innovation continues with their commitment to providing customers with the best products and services. They have an award-winning Distributed Control System, and you can rely on Foxboro for dependable instrumentation.


  • Gems Warrick Controls

    Gems Warrick Controls

    Warrick® Conductivity liquid level control systems rely on the liquid level sensing capability of probes (electrodes) that are housed inside fittings designed to accommodate one or more probes. The concept is simple: take advantage of a liquid’s conductive properties to complete a circuit and cause a control relay to actuate. These single- or multi-point sensors have no moving parts and the stainless steel corrosion-resistant electrodes can be cut to the desired length. Multiple probes per fitting allow control of several functions in less space with less expense for equipment and installation. To create a system select from numerous level controllers, fittings and probe options. For OEM’s we also have the capability to custom configure liquid level control units and electrode fittings to meet your specific level control application requirements.


  • Graphic Controls

    Graphic Controls

    Graphic Controls manufactures thousands of different charts to fit most recorders in use today. Their custom press capabilities enable Graphic Controls to create a chart for any need or application. In addition, Graphic Controls manufactures a complete line of disposable pens, pen arms, inks and accessories. These are designed to fit the circular and strip chart recorders of over 80 foreign and domestic instrument manufacturers. Graphic Controls LLC charts and disposable pens are engineered to work together for optimum results and accuracy


  • Hoffer Flow Control

    Hoffer Flow Control

    Hoffer turbine flow meters can be found in service worldwide and are regarded as a reliable, cost-effective method for achieving high accuracy flow measurement. Hoffer turbine flowmeters are simple to operate and maintain. Features on the Hoffer turbine flow meters include dynamic response time, wide flow range capability, and the ability to customize the turbine flow meter for a specific flow application. Custom features may include the design of the flow meter housing, a unique blade angle on the turbine meter rotor assembly, special materials of construction, etc.


  • Honeywell


    Honeywell manufactures a full and comprehensive range of portable and fixed gas detection products dedicated to all types of industrial facilities, from smaller boiler rooms to large petrochemical plants and oil refineries. Honeywell’s wide range of technologies and devices – gas detectors, flame detectors, natural gas alarms – provide exceptional protection at every level, ensuring the most favorable coverage, detection, hazard mitigation and life protection.


  • Hyett


    Hyett Diaphragm Seals offer superior construction features for total dependability, including top quality steel and other materials, precision machining of threaded connections. Hyett Food & Beverage Seals are made with all stainless steel parts; upper housing, lower housing, diaphragm and 2″ quick-disconnect clamp. Hyett Seals are made in the USA.


  • Kistler-Morse


    Kistler-Morse® designs and manufactures total weighing systems for bulk and in-process applications. These include:


  • Kobold


    Since 1980 KOBOLD has been a world leader in process measurement and control solutions. The company offers one of the industry’s broadest lines of sensors, switches and transmitters to measure and control flow, pressure, level and temperature. KOBOLD sensors and controls include flowmeters, flow switches and flow transmitters, pressure gauges, pressure transmitters and pressure switches, level switches, float switches, level gauges, level transducers, level indicators and level transmitters, temperature switches, temperature gauges and temperature transmitters, and accessories, including magnetic filters, needle valves, regulating valves, control devices and relays.


  • Liquid Controls

    Liquid Controls

    Liquid Controls has the expertise to offer support for the industry's wide variety applications. Liquid Controls meters are designed to handle the industry's toughest fluid metering applications.  Liquid Controls combines over a half-century of application experience in Positive Displacement flow meters and accessories with the addition of Sponsler turbine meters, electromagnetic flow meters and coriolis mass flow meters, to ensure that the meter is suited for the application.


  • Macnaught Flow Meters

    Macnaught Flow Meters

    Macnaught Pty Ltd, a privately owned company established in 1948, has been designing and manufacturing premium quality fluid measurement, fluid transfer and lubrication equipment for the agricultural, automotive, industrial, mining and transport industries across the globe for over six decades. Macnaught continues to lead the market by providing its strategic partners with superior product options and quality service to ensure ongoing loyalty. We value the relationships we maintain in the industry and are committed to ensuring we continue to add value to the businesses we serve.


  • Madison Company

    Madison Company

    Madison Company is a leader in liquid level technology, best known for its float switches and liquid level sensors. Container overfill or container emptiness can contribute to needless time, money, and frustration during specific processes.


  • Marsh Bellofram

    Marsh Bellofram

    Marsh Bellofram is a world class instrumentation manufacturer, with powerful product support, and near flawless distribution. Marsh Bellofram is an AS9100C and ISO9001:2008 certified leading global manufacturer of high-performance OEM, industrial and process control instrumentation, including timers and counters, digital controllers and panel meters, RTD’s and thermocouples, pressure instruments and gauges, FRLs, cylinders, natural gas and propane pressure regulators, air pressure regulators and transducers, tank and liquid level measurement systems, pump and motor protection switches and alternating relays, as well as sensors, DC tachometers, encoders, industrial diaphragms, and specialty silicones.


  • Mcdaniel Controls

    Mcdaniel Controls

    First conceived in 1972 when a liquid fillable gauge appeared on the American market, McDaniel developed the first all stainless, liquid fillable, field repairable line of pressure gauges. With pressure ranges from 1.6 inches of H20(WC) up through 60,000 psi and dial sizes of 1-1/2", 2", 2-1/2", 4", 4 1/2", 6" and 10" - of quality construction; all-stainless steel, brass, etc. McDaniel has the largest and finest selection available. Many "first of its kind" were manufactured with only one thought in mind: "purposeful construction". Economical and dependable operation with cost as only a secondary consideration. Engineered to withstand 300% full scale pressure without rupture of the bourdon tube and 130% full scale pressure(for all instruments larger than 2 1/2") without loss of accuracy makes us the exception in the marketplace today.


  • Mid-West


    Mid-West Instrument's uses the latest technology for integrating the design engineering testing, manufacturing and assembly of Mid-West's line of precision instruments. Mid-West Instrument has been providing Differential Pressure Products since 1958. With a majority of our DP Gauges, Switches, Transmitters and Backflow Test kits manufactured in the state of Michigan USA, with product warranties ranging from One (1) Year to an industry leading Five (5) Year Warranty.


  • National


    National Instrument was founded in 1986 by Brian and Manan Feys in Nashville, TN. It was their mission to provide customers with quality instrumentation through professional yet personable service. Over the past 22 years, NISCO has garnered the reputation of being one of the most well-respected distributors in the US. and we look forward in continuing to provide you with the quality of service that you can expect from us. We like to think of ourselves as a team, both within our company, and with our manufacturers and loyal customers.


  • Niagara Meters - Aaliant

    Niagara Meters - Aaliant

    The Aaliant and Niagara product families are committed to providing flow measurement solutions that are reliable and proven. Aaliant flow measurement products are used throughout the agriculture, food, beverage, tobacco, mining, oil & gas production, paper, petrochemical processing, plastics & rubber, pharmaceutical, and power generation industries.


  • Palmer / Wahl

    Palmer / Wahl

    America's first thermometer company originated in Cincinnati, OH in 1836. Since that time, Palmer Instruments has steadily evolved through product development geared exclusively towards industrial supply and process measurement. From development of the "Foster Cup" thermometer in 1880, through the radical improvement of thermometer legibility by the patented "Red Reading Mercury" tube in 1929, to today's temperature and pressure measurement innovations, Palmer has always maintained the "first" tradition by bringing instrument value, service and quality to a broad range of industries. Palmer has developed special-application products such as Dual-Sensing and "Slip-fit" thermometers, and pioneered new industry services such as free lifetime recalibration on pressure gauges.


  • Pepperl-Fuchs Christensen Display

    Pepperl-Fuchs Christensen Display

    By specializing in flat panel and touch screen solutions, Christensen Display Products has expert knowledge of the visualization market and display technology and is known within the industry for manufacturing high-quality equipment with excellent customer service and fast deliveries.


  • Pepperl-Fuchs Process Automation

    Pepperl-Fuchs Process Automation

    The Pepprel + Fuchs Process Automation Division is the market leader for intrinsically safe components & products for hazardous area applications. Their products allow you to combine a wide range of electronic equipment into complete system solutions- including intrinsic safety interfaces, remote I/O, Fieldbus/HART, purging & pressurization, level sensing, corrosion detection, power supplies, signal conditioning & fieldbus interface products.


  • Perma-Cal


    Perma-Cal® Industries, Inc. has been a leader in quality and design of Direct Drive Pressure Gauges since 1980. Reliable in the most rugged environments, Perma-Cal gauges are designed to withstand hostile applications, including intense vibration, shock and over-pressure. For this reason, Perma-Cal gauges are well suited for Aerospace, Military, Marine, Petrochemical, Industrial and Commercial Diving applications.


  • Phoenix Contact

    Phoenix Contact

    From the terminal block to the controller, you can look forward to a comprehensive range of components and systems. Innovative I/O wiring systems and industrial plug-in connectors ensure efficient power and data transmission. Whether PCB connection or electronics housing: you'll find your individual solution. Phoenix products are based on a systemic approach and can be combined in a variety of ways for a customized package to implement special tasks.


  • Precision Digital

    Precision Digital

    Established in 1974, Precision Digital Corporation designs, develops, manufactures, sells and distributes digital devices driven by embedded systems that transform, display and control critical process information. Products will accept virtually any analog signal such as 4-20 mA, thermocouple, RTD, DC voltage and pulse as well as digital serial data, such as Modbus. Products include Digital Panel Meters, PID Process and Temperature Controllers, Annunciators, Multi-Channel Controllers,Loop-powered Indicators, Flow Rate Meters and Totalizers, Batch Controllers and Pump Controllers.


  • Pyromation


    Pyromation is a premier manufacturer of RTD Temperature Sensors, thermocouples, transmitters, and thermowells. They have been operating for over 50 years to deliver high-quality RTD Temperature Sensors, thermocouples, transmitters, and thermowells in North America. Pyromation is an ISO 9001 registered firm. They produce a range of parts and assemblies, both in standard shapes and custom designs in varying temperatures, which are used on equipment and in process applications.


  • Questtec Solutions

    Questtec Solutions

    Questtec Solutions is a young company with a long lineage of quality, experience and care. The development and engineering of the liquid level gage and valve product lines began more than fifty years ago. These products have been consistently refined and improved to remain one of the industry leaders in liquid level measurement.


  • Reotemp


    REOTEMP is recognized as a quality and service oriented company, offering not only bimetals, but also a full line of temperature and pressure products. Our offering includes vapor actuated thermometers, gas actuated thermometers, thermowells, Sanitary Bimetals, RTD's & Thermocouples and other related temperature products. Our pressure products include a large variety of pressure gauges, diaphragm seals, transmitters, needle valves and other accessories.


  • Sage Instrumentation

    Sage Instrumentation

    Centro is a leading distributor of Sage Instrumentation thermal mass flow meters. In the case of gas flows, a thermal mass flowmeter is used to measure the speed at which a fluid flows, the volume that has flowed, or the quantity of fluid supplied. Sage meters can measure up to 1% accuracy and flow rates in excess of 500m3/hr.


  • Schneider Electric SCADA - Telemetry & AccuTech – IAN Wireless Instruments

    Schneider Electric SCADA - Telemetry & AccuTech – IAN Wireless Instruments

    Schneider Electric is an industry leader in remote management software and wireless measurement and instrumentation.


  • Sensortec


    SensorTec offers a full line of Resistance Temperature Detectors (RTDs) for almost any application. SensorTec offers three basic types of thermocouples: Mineral Insulated (MgO), Tube & Wire, and Industrial thermocouples. SensorTec offers a full line of RTD and Thermocouple thermowell assemblies. SensorTec offers a complete line of accessories from standard plugs and jacks to thermocouple and RTD wire.


  • Signet


    Georg Fischer LLC (GF Piping Systems) is the sales, marketing and logistics organization for Engineered Piping Systems, Valves and Actuation, PVC/CPVC piping systems, and Signet instrumentation in the U.S. In addition, GF provides a wide range of value add capabilities through the Custom Products group.


  • Sparling


    Sparling Instruments has been a leader in fluid flow measurement for over 100 years. Their technologies include electromagnetic meters, propeller meters, vortex meters and positive displacement meters. Sparling Propeller Meters are engineered for a long, trouble-free life. Sludge, slurry, soup or salsa - there is a Sparling magmeter to fit your application.


  • Stauff


    Over the last 50 years, STAUFF has become a leading supplier of accessories in the hydraulics industry.  From the beginning, STAUFF has focused on market requirements, offering high-quality products in conjunction with outstanding service.  STAUFF is tuned in to the needs of the global market and this, together with the benefit of an experienced and highly motivated team of employees and the use of innovative technology, enables the company to offer a sophisticated product range which will satisfy the requirements of each and every customer worldwide.


  • Taylor Precision Products

    Taylor Precision Products

    Taylor Precision Products is the leading North American manufacturer of thermometers, scales and related measurement products. Taylor offers a broad variety of products sought after by consumers and professionals alike who demand the best. Taylor products are used in the home, outdoors, fitness centers, restaurants, laboratories and manufacturing plants.


  • Techline


    Techline Mfg. was founded in 1982 as an industrial support manufacturer. Since that time Techline has emerged as one of the nation's leading manufacturers of tubing and instrument support systems. They offer a wide range of raceways, fittings, clamps, fasteners, stands, chambers, and manifolds.


  • Trerice


    Since 1923 H.O. Trerice Co. has endeavored to produce a complete line of the highest quality temperature and pressure instrumentation and controls for the various industries it serves. Trerice's track record of engineering and manufacturing excellence has provided us with an internationally recognized reputation for performance in service and product.


  • Van London

    Van London

    Van London Co. (VLC) manufactures a wide variety of electrodes, sensors, assemblies and accessories for pH, Contacting Conductivity, Toroidal Conductivity, ORP, Dissolved Oxygen, Optical Dissolved Oxygen, Karl Fischer, Ion-Specific and Custom Designs. Direct Replacements for Laboratory, Titration, Biotech, Potentiostatic Chlorine and Industrial applications are available for all major brands.


  • Waltron


    Experts in boiler water chemistry and innovators to the drinking water industry for over a century, Waltron manufacturers the most advanced online instrumentation available today. Waltron is the market leader in water and steam quality monitoring instruments for the Power Generation, Petrochemical, Pulp and Paper, Water/Wastewater, Semiconductor, and Environmental industries.


  • Weksler


    Specified around the world for the most demanding requirements, these instruments are widely recognized under the brand names Ashcroft,® Heise,® Willy,® and Weksler.® They can be found in wastewater treatment facilities, biotech and pharmaceutical labs, medical applications, semiconductor facilities, refineries, power generation plants, food processing plants, pulp and paper mills, chemical manufacturing plants and the host of support companies that serve these industries.


  • Wika


    WIKA is world market leader in pressure, temperature, and level measurement instrumentation. WIKA's quality management system has been certified to ISO 9001. Their high quality and safety standards have even found their way into the standardization systems of many countries around the world.