Hach Flow

Hach Flow, including its legacy brands Sigma and Marsh-McBirney, has a proven track record of industry-leading innovation and product accuracy in open channel flow measurement.

With true and timely flow data, you reduce risk and make critical wastewater flow decisions with confidence, managing your flow proactively rather than reacting to problems.

Hach meters are the link between collecting superior flow data and conveying it to you conveniently and reliably, with options for stationary, portable, permanent or temporary use. The sensor range runs from non-contact sensors that stay above the flow to limit fouling, to rugged submerged AV sensors.