1.5" Digital Flow Meter

Meter Irrigation by Volume, 1.5-Inch Line

TrolMaster's digital inline flow meters bring volume-based irrigation scheduling to the Aqua-X Pro system, tracking exactly how much water or nutrient solution has passed through a line instead of relying on run time alone to estimate output. Because the reading comes straight from measured flow, a partially clogged emitter or a slow drop in pump output shows up in the numbers well before it shows up in the crop.

This 1.5-inch model is the largest in the DFM lineup, sized for the highest-flow irrigation runs in a facility rather than a single-room drip line, and operates across 32 to 122°F (0 to 50°C).

Key Features & Benefits

• Digital Inline Flow Measurement — measures water or nutrient flow directly through the line rather than estimating it from pump run time.
• Volume-Based Irrigation Scheduling — sets watering schedules by measured volume through the Aqua-X Pro system instead of time alone.
• Leak and Blockage Detection — flags water leaks and line blockages as they occur, rather than after a crop shows stress.
• Rated for Grow-Room Conditions — operates across a 32 to 122°F range with working humidity up to 90%.

Who Should Use a TrolMaster DFM Flow Meter

Growers running the Aqua-X Pro irrigation system who want to schedule watering by measured volume, rather than estimated time, and catch leaks or blockages before they affect a crop are the target audience for the DFM series. Facilities with more than one irrigation zone benefit most, since volume data makes it easy to confirm each zone is actually receiving what it was programmed to deliver.

About TrolMaster

TrolMaster designs the Aqua-X Pro irrigation platform, including the DFM flow meter series, alongside its Hydro-X climate control and Carbon-X CO2 safety product lines, from company headquarters in Sacramento, California. Measured-volume irrigation control is one piece of the wider control ecosystem the company builds for commercial-scale grow rooms.

Frequently Asked Questions

What system are TrolMaster's digital flow meters built for?

They are built for the TrolMaster Aqua-X Pro irrigation system. Each model installs directly into an existing irrigation line rather than requiring a separate control loop.

Can these meters detect problems besides flow volume?

Yes, every model in the DFM series can detect water leaks and line blockages as they happen. That gives an early warning before reduced or interrupted flow shows up as crop stress.

What is the working temperature and humidity range?

Every DFM model operates from 32 to 122°F. Working humidity is rated up to 90%, covering typical grow-room and greenhouse conditions.

Do the different DFM sizes work the same way?

Yes, the 1-inch, 1.25-inch, and 1.5-inch models share the same volume-based scheduling and leak-detection functions. They differ only in the pipe diameter each one is built to fit.

Does a DFM meter replace the Aqua-X Pro controller?

No, a DFM meter is a sensor component, not a standalone controller. It reports flow data to the Aqua-X Pro system, which uses that data to manage irrigation scheduling.

How is a DFM meter installed into an existing line?

It threads inline using the tapered thread adaptors sized for its pipe diameter. No cutting of the existing plumbing beyond the fitting point is required.