Hach's flow products and services have a proven track record of creating industry-leading innovations with unwavering product accuracy in the open-channel flow measurement world. Empowering you with true and timely flow data for your analysis, we dramatically reduce your risk and enable you to make critical wastewater flow decisions with absolute confidence. And smart decisions mean you're proactively managing your flow, rather than reactively dealing with problems. From state-of-the-art wireless flow loggers and industry-pioneering non-contact flow sensors, as well as our revolutionary Hach Data Delivery Services (DDS), We are committed to providing flexible solutions for all of your flow monitoring challenges.

Be Confident in Your Flow Data.

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New Hach FL1500 Flow Logger

New FL1500 Flow Logger

The flexibility you need in a stationary logger.

Supporting the most sensors of any Hach logger, the FL1500 is an agile logger for your site applications

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FSDATA Desktop Instrument Manager

FSDATA Desktop Instrument Manager

Improve your efficiency
in the field.

Free software designed specifically for field crews to reduce time needed to set-up, download and maintain your Hach FL Series Flow Loggers.

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The Quest Video

The Quest for Good Flow Data

Hunting for Good Flow Data?

DDS offers the path of least resistance.

Watch the Video »

Online Calc

Online Calculator

On-line open channel
& full-pipe flow calculator for pros in the water & wastewater field.

» Calculator link

Ask the ExpertsAsk the Experts

Over 50 years of combined experience to assist you with your flow monitoring inquiries.

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Focus on Flow

Product & technology newsletter.

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Flow ApplicationFlow Application Review

Allow us to evaluate and recommend the ideal solution for your flow monitoring application.

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P.O. Box 389, Loveland, CO 80539-0389 U.S.A.
800.368.2723
Toll Free US & Canada • 970.622.7120 Outside US & Canada • 800.635.1230 24/7 Technical Support