YSI is the leading provider of comprehensive water quality monitoring solutions for wastewater treatment systems. With over seven decades of innovation, YSI delivers field-proven instrumentation that helps wastewater utilities optimize treatment processes, ensure effective effluent quality, and maintain regulatory compliance. From influent characterization to treatment plant optimization and effluent monitoring, YSI’s advanced sensor technology provides real-time data on critical parameters including dissolved oxygen, ammonia, nitrate, phosphorus, suspended solids, and more. Our IQ SensorNet network-based systems enable utilities to monitor up to 20 parameters simultaneously, ensuring optimal treatment efficiency and process control. YSI’s scalable solutions range from handheld field instruments like the ProDSS for spot sampling to comprehensive online monitoring solutions for treatment facilities. Our field-tough, lab-smart instrumentation is backed by expert consulting and technical support services. Wastewater utilities worldwide trust YSI to deliver accurate, reliable data needed for efficient water quality management.
Winters Instruments
Winters is a leading global manufacturer of pressure gauges, pressure transmitters, pressure switches, diaphragm seals, thermometers & digital instruments. | Since 1953, Winters Instruments has been manufacturing quality-built instrumentation for all markets that require pressure and temperature measurement. Through the years, the company has grown in size and reputation and is now a leading global manufacturer of industrial instrumentation. Our comprehensive product line of pressure gauges, pressure transmitters, pressure switches, diaphragm seals, thermometers, temperature sensors, valves and various accessories are brought to market by an extensive network of distribution partners and are trusted by some of the world’s most recognized Fortune 500 companies. Winters Instruments currently operates from 8 worldwide offices. Winters is a 2023 Gold winner of Canada’s Best Managed Companies program.
TechStar
With over 20 years in process controls and industrial automation, TechStar has everything needed to help get your measurement and process challenges solved and running in their optimal performance and output. Experience, innovative solutions, training and service are the foundation of what TechStar offers to customers. Backed by our world class manufacturing strategic partners, our team is well equipped to see you through every step of the toughest applications and challenges.
Steins Instrument Inc.
Steins has been dedicating to manufacture fluid measurement instruments since 2001. We offer a vast array of flow meters, pressure transmitters, level meters, and temperature sensors. We understand that every application has unique needs, so we also offer tailored solutions to meet your specific requirements. Our reliable products have been trusted in industries such as oil and gas, water treatment, and chemical processing. The calibrating systems at Steins guarantee that every product we produce is of the highest standard. We believe that consistency is key, and our system ensures that our products are always accurate, and reliable. | Since 2001, Steins has been dedicating to manufacture fluid measurement instruments for offshore and onshore uses, such as subsea turbine flow meters; subsea positive displacement / gear flow meter; magnetic flow meters, thermal mass flow meters and flow switches. | Steins has been dedicating to manufacture fluid measurement instruments since 2001. We offer a vast array of flow meters and switches for liquid and air/gas, such as magnetic flow meter, thermal mass flow meter, turbine flow meter and gear flow meters etc. Our product line includes pressure transmitters, level meters, and temperature sensors as well. Our reliable products have been trusted in industries such as oil and gas, water/wastewater, and chemical processing. We understand that every application has unique needs, so we also offer tailored solutions to meet your specific requirements. The calibrating systems at Steins guarantee that every product we produce is of the highest standard. We believe that consistency is key, and our system ensures that our products are always accurate, and reliable.
Solinst Canada Ltd.
Solinst Canada Ltd. is a global leader in the design and manufacture of high-quality groundwater and surface water monitoring instrumentation. Founded in 1975 and headquartered in Georgetown, Ontario, Solinst is a family-owned enterprise dedicated to providing hydrogeologists and water professionals with innovative, reliable, and easy-to-use tools. Our extensive product line includes the industry-standard Model 101 Water Level Meter, a range of level measurement devices, advanced Levelogger dataloggers, telemetry systems, groundwater samplers, multilevel systems, borehole liners, and more. We specialize in equipment for site investigations, spill monitoring, and long-term water resource management. A highlight of our portfolio is Solinst Eureka, which offers a comprehensive range of multiparameter water quality sondes. These advanced probes, including the Manta+ series, feature the industry’s largest selection of sensor technologies. Solinst Eureka instruments are engineered to measure critical parameters, including pH, conductivity, DO, and turbidity, as well as specialty sensors such as fluorometers. These sondes provide accurate data for spot-checking, autonomous logging, or remote real-time monitoring via telemetry. At Solinst, we take pride in our in-house design, manufacturing, and technical support. Our commitment to innovation and customer service ensures that we provide the precision and durability required for the most challenging environmental applications.
SK. SUNKWANG TECHNOLOGY CORPORATION
Korean-designed pump control solutions combining proven reliability with flexible OEM capability—bridging premium quality and cost efficiency. We specialize in the design and manufacturing of pump control solutions, including pump controllers, float switches, VFDs (Variable Frequency Drives), and MCU control panels. We deliver reliable quality, and flexible OEM/ODM capability for pump OEMs, water treatment EPCs, and distributors worldwide.
SJE
SJE® was founded in 1975. Over 50 years later, SJE has evolved into a global industry leader in control systems, operating throughout the United States and Canada, as well as in international markets. SJE, a privately held company, is comprised of over nine well-respected brands known for their innovation and quality. SJE has locations throughout the United States, Mexico, and Asia. SJE offers a wide variety of control products for residential, commercial, municipal, water, wastewater, and industrial markets, representing the most reliable integration of engineering and manufacturing capabilities in the industry. To learn more, visit www.sjeinc.com.
Sierra Instruments
For over 50 years, Sierra has been a global pioneer in the design and manufacturing of precise flow measurement instruments you can trust. Sierra’s flow measurement solutions provide the accuracy and reliability needed to boost process efficiency and reduce costs in water and wastewater facilities. Monitor and maintain control of aeration, digestion, and cogeneration applications with Sierra’s BioTrak series of thermal mass flow meters. For pipes and ducts with limited straight-run, Sierra’s BioTrak 645i installed with dual-plate FlowTrak flow conditioners ensures accurate and repeatable flow measurement with the shortest straight-pipe requirements of any mass flow meter in the industry. In addition to high accuracy and wide turndown, BioTrak offers excellent field flexibility and innovative digital features to adjust for gas composition changes and validate measurement performance in the field. BioTrak is available in insertion and inline models, with options for AC & DC power input, remote display/electronics, hot-tap/retractor assemblies, and more. Please visit booth 7724 to discover how Sierra can help solve your flow measurement challenges.
Senix by BinMaster
Senix offers reliable and rugged ultrasonic sensors for every industry. Visit us at WEFTEC ’25 for sensor demonstrations, give-away items, and networking with ultrasonic experts! Our ToughSonic® general purpose and chemical-resistant sensors are an affordable, reliable choice for automation and level and distance measurement in industrial, municipal water treatment, and environmental applications. ToughSonic-100 and -200 series sensors provide high-accuracy liquid level monitoring in tanks, industrial containers, and open-air clarifiers. ToughSonics are a durable choice for liquid level monitoring. Utilize ultrasonic sensors for responsive tank level measurements in processing and sanitary environments. Industrial equipment and treatment plants rely on these durable transmitters for pump/valve automation and foreign object detection. Researchers in academia enjoy the configurable flexibility of ToughSonic sensors for R&D. Senix has been a force in ultrasonic level and distance sensors for over 35 years. No matter what your application—manufacturing, food processing, civil engineering, biofuels, and everything in between—there’s a ToughSonic for every industry. Senix became a part of Garner Industries, LLC—headquartered in Lincoln, Nebraska, USA—in 2024. Senix is a sister company to BinMaster, an industry leader for level sensors and inventory software, and HerdStar, home of BinTrac® bin weighing and load cell solutions and MicroZone® automated heat lamp and mat controls. | Senix offers reliable and rugged Ultrasonic Sensors for every industry. Senix ToughSonic® general-purpose and chemical-resistant sensors are an affordable, reliable choice for automation and level and distance measurement in industrial, agricultural, and marine applications. ToughSonic-100 and -200 series sensors provide high-accuracy liquid level monitoring in tanks, industrial containers, and in open-air environments. Senix sensors are a durable choice for flood and river level monitoring. Or utilize ultrasonic sensors for responsive tank level measurements in processing and sanitary environments. Heavy equipment and maritime operations rely on our durable transmitters for distance ranging and obstacle avoidance in nautical, bridge, or road construction sites. Senix has been a force in ultrasonic level and distance sensors for over 35 years. No matter your application—municipal wastewater, civil engineering, fertilizer tanks, and everything in between—there’s a ToughSonic for every industry. Senix became part of Garner Industries, LLC—headquartered in Lincoln, Nebraska, USA—in 2024. Senix is a sister company to BinMaster level sensors and inventory software serving the agriculture and process industries since the early 1960s.
R-K Electronics, Inc.
R-K Electronics designs and build electronic control components for the pumping industry. Products would include: seal & tempstat relays, single & three phase voltage monitors, intrinsically safe relays for hazardous areas, liquid level controls, alternating relays, Duplex pump controller with high alarm, 3 and 4 pump/compressor sequencing relays, time delay relays, single phase Kw monitor with ModbusRTU communications, transient voltage filters, AC current sensing relays. R-K also make transient voltage filters to suppress kick-back from inductive loads/coils. Seal & tempstat relays are al digital with a display showing the actual seal resistance and NC stat condition. The seal & tempstat relays can also monitor a PTC in place of a NC stat with surface or panel mounting. Three phase voltage monitors can plug-in, surface, panel or din mount. Digital phase monitors show the actually voltage on all three phase and can monitor 115VAC to 277VAC, 1Ø in addition to 200VAC to 600VAC, 3Ø. Three phase monitors are available with Modbus communications. Intrinsically safe relays come in 2-channel and 4-channel configurations. They monitor conductivity/resistance and can be used with probes, floats or a combination. Supply voltages for 2-channel relays are 12VAC/VDC, 24VAC/VDC and for 4-channel relays are 24VAC, 120VAC or 240VAC. Liquid level controls are plug-in with adjustable resistance from 5K to 100K Ohms. Sensing voltage is AC so there is no accumulation of debris on the probes. The duplex pump controls accepts up to 4-float inputs and can sequence pumps via alternation and also provides alarm output for high alarm. Three and four pump/compressor sequencers operate on first on first-off logic. That means all pumps or compressors are operated as long as one or more inputs are satisfied. R-K offers a complete line of time delay relays: on delay, off delay, interval on, one shot, repeat cycle and on-off delay for a single float pump down application.