Hach flow meters
New Hach open channel flow meters, sized for your site and backed by local installation and field service.
Hach Flo-Dar
The Hach Flo-Dar measures open channel flow without ever touching the water. A radar velocity sensor and ultrasonic level sensor mount above the flow, so there's nothing in the pipe to foul, snag ragging or wash away — ideal for harsh wastewater and high-velocity sites.
Details & quote →Flow loggerHach FL900 Flow Logger
The Hach FL900 series is the go-to portable flow logger for temporary flow studies and long-term monitoring. It records level, velocity and calculated flow from a range of Hach sensors, with remote data options so you aren't climbing into manholes to pull data.
Details & quote →Area-velocity sensorHach Flo-Tote 3
The Flo-Tote 3 uses electromagnetic velocity measurement with a pressure level sensor for accurate open channel flow measurement — including in low-flow, shallow and reverse-flow conditions where other technologies struggle.
Details & quote →Flow loggerHach FL1500 Flow Logger
For permanent monitoring sites with power available, the FL1500 provides continuous flow logging with outputs for SCADA and plant control systems. It accepts the same family of Hach sensors as the FL900.
Details & quote →We'll match the meter to the site
Pipe size, depth, velocity range, debris, surcharging and power all affect which Hach flow meter will perform. Send us the site details and we'll recommend a sensor and logger combination.
- Ragging or heavy debris? Flo-Dar's non-contact radar stays out of the flow.
- Shallow or low flows? Flo-Tote 3 electromagnetic velocity performs well.
- No power at the site? FL900 runs on batteries.
- Need SCADA outputs? FL1500 is built for permanent, powered sites.
Get a quote on Hach equipment
Tell us about your site and we'll put together a quote with installation.