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Flow Meters 

Flow Measurement. Made Simple. 


ISCO Signature® Flow Meter

The Signature flow meter is designed for open channel flow monitoring applications. It supports flow measurement technologies including bubbler, non-contact laser area velocity, submerged Doppler ultrasonic area velocity, and ultrasonic. The meter can calculate flow using standard open channel level-to-flow and area velocity conversions, as well as user-defined equations, level to area data points, or level to flow data points, depending on the application need.
The Signature flow meter has unique features to verify data integrity. It logs key events such as changes in calibration and power outages to validate data accuracy. Data can be easily reviewed to detect any type of data alteration. With multiple smart interface options and multi-parameter logging (such as pH), the Signature flow meter provides a common platform for control action, reporting, and communication.

Multiple flow technologies are available so you can select the best flow technology for the measurement site and channel conditions. Available technologies are: bubbler, ultrasonic, continuous wave area velocity, and non-contacting LaserFlow™ velocity.


  • Industrial Pretreatment Compliance
  • Shallow Flow Measurement in Large and Small Pipes
  • Permit Enforcement
  • Wastewater Treatment Plants
  • Outfall

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Standard Features

  • Multiple simultaneous flow technologies
  • SDI-12 input
  • RS-485 Modbus input
  • RS-485 Modbus output
  • NEW! Rain gauge input
  • Multiple parameter data logging
  • Program and Summary Reports
  • Data integrity verification
  • Triggering, sampler enabling
  • Compatibility with Flowlink® software


isco Non-Contact LaserFlow

Isco Non-Contact LaserFlowTM Velocity Sensor

Ultrasonic clamp-on flow meter

Remotely measures flow in a pipe or channel using advanced technology to measure velocity with a laser beam at single or multiple points below the surface of the wastewater stream. During submerged conditions, flow measurement continues without interruption with an optional Doppler Ultrasonic Area Velocity technology.

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flow meter

accQpulse™ Velocity Profiler

Accurate flow measurement in shallow and deep water applications

The accQpulse™ Velocity Profiler brings unparalleled measurement precision and accuracy to flow rate measurement in many sizes of pipes and open channels. Its unique ability to measure velocity at multiple points makes it suitable for most applications including sites with non-uniform, rapidly changing, near zero, or reverse flow conditions. These applications include: wastewater collection systems, billing, combined sewer systems and outfalls, wastewater treatement facilities, irrigation canals, industrial discharges, and stormwater conveyance and outfalls.

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Flexim Clamp-On Flow Meters

fluxus flow meter


Single Channel Portable Flow Meter

The FLUXUS F401 is FLEXIM's dedicated single channel portable flow meter for applications in the municipial water and wastewater sector offering long term stable and precise bidirectional flow measurements in remote areas outdoor - being ideal for water loss activities prescribed in AWWA M-36.

As the measurement is carried out from the pipe wall outside and without contact with the water column, there is no need to enter the piping system or to interrupt supply. Thus, the FLUXUS F401 is the ideal tool for service and maintenance activities, for long or short term monitoring, data logging and existing meter verification.

The FLUXUS F401 is equipped with water-tight IP68 / NEMA 6P transducers, with the flow transmitter residing inside a IP67 / NEMA 6 suitcase. Combining its internal battery capacity with an additional external battery suitcase (IP67 / NEMA 6 protected), the F401 offers long term remote measurements of at least one week.


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The Portable Multi-Functional Flowmeter

The FLUXUS F601 is the portable clamp-on flow meter of choice for servicing and maintenance activities, the control and auditing of measurement points not covered by permanent meters, or even the temporary replacement of permanently installed flow meters.

The FLUXUS F601 is measurement-ready in less than 5 minutes, including the measurement of the pipe wall thickness, the connection of the transducers to the transmitter, the setup of the flow meter and finally the mounting of the transducers.


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fluxus meter


Bi-Directional Flow Measurement 

The FLUXUS F501 is FLEXIM's solution for many flow metering applications found in the water and wastewater sector and adjacent industries.

The FLUXUS F501 offers a precise bi-directional flow measurement over a wide turndown ratio - not only at high, but especially at low flow velocities. Due to its matched and paired transducers, it also guarantees a superior zero stability.

As of its high repeatability, the FLUXUS F501 also offers the possibility for leak detection. Especially at night, when temperatures are more even and only low flow velocities are common in drinking water lines, leakages can clearly be identified and such reading transferred to a process control system.


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FLEXIM F704 Ultrasonic Flow Meter


The Flow Meter for permanent installation

With one or two flow channels and versatile electrical inputs and outputs, the FLUXUS F704 can be configured optimally for your application needs, measuring and serving up a variety of process parameters.

The FLUXUS F704 features a robust metal field housing. Its clamp-on flow transducers are simply mounted onto the pipe from the outside and are thus installed quickly, without any process interruption and without any production stoppage.

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By far the most widely accepted flow measurement device is a flume. With over 40 years experience assisting customers with selecting the appropriate flume for their applications paired with Plasti-Fab, Inc.’s high quality corrosion resistant flumes, let C.C. Lynch & Associates, Inc. help you design your next flow measurement system.


Need a Flume for your project? Visit our Flumes page for more details and PDF downloads.

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