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Level and Pressure Instrumentation

Johnston Inc. is proud to represent the following manufacturers. Links to the manufacturers' sites are provided.

Opti-Floatâ„¢ Optical Flow Switches

www.coxresearch.com

 

Wetwell Level Sensors and Pump Controllers

www.contegra.com

 

KPSI Pressure and Level Transducers

www.pressuresystems.com/Products/Environmental.aspx

 

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Products

  • Automatic Samplers
  • Chemical Metering Pumps
  • Flow Meters
  • Flow Control
  • Lab and Field Instruments
  • Process Control and Monitoring Instruments
  • Level and Pressure Instruments
  • SCADA/Telemetry/ Dialers/Loggers
  • Shelters
  • Process Treatment Equipment
  • Odor Control
  • Services

Our Company

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Our Products

  • Chemical Metering Pumps
  • Flow Meters
  • Flow Control
  • Lab and Field Instruments
  • Process Control and Monitoring Instruments

Our Products

  • Level and Pressure Instruments
  • SCADA/Telemetry/ Dialers/Loggers
  • Shelters
  • Process Treatment Equipment
  • Odor Control
  • Services

News / Events

  • "New addition to our sales force. Johnston, Inc. recently hired Tony Arnold to augment our sales force in North Carolina. Tony has an extensive background in water and wastewater: operating systems, working at the NC DENR for many years and a stint at the NC Rural Water Association. Expect to see Tony at your doorstep soon."

    Johnston Inc.
  • ""The Cox Research Opti-Floatâ„¢ was recently tested to over 15 million operations. At that rate this float switch could last over 50 years in a typical application. The Opti-Float is inherently instrinsically safe, eliminating the need for troublesome safety barriers. Contact us for a free trial of this breakthrough technology.

    Johnston Inc.
  • "Johnston, Inc. is now the exclusive representative for s::cam Measuring Systems, LLC a world class manufacturer of reagentless analyzers for municipal and industrial water and wastewater. s::can provides the lowest cost of ownership and reliable, low maintenance solutions."

    Johnston Inc.
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