The Hach Sigma Model 910AV open-channel flowmeter measures average velocity directly without the need for flow profiling. With a compact 4.5-by-18-in. design, weighing less than 8 lb (with battery), the flowmeter is an ideal option for remote environments. This flowmeter will log level and velocity data for more than 30 days without changing a battery and has a sealed design that provides system protection.
