EC Sensors for Irrigation, Fertigation & Hydroponics

Electrical conductivity is the number that summarizes your feeding: solution concentration, source-water salinity, and drainage quality. Agrinovo EC sensors measure it continuously, in the line and in the reservoir, and feed it straight to your dashboard and alerts.

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Where EC Runs the Farm

Three places where one continuous number replaces sampling, guessing, and fertigation surprises.

Fertigation

The EC of the nutrient solution is the practical measure of fertilizer concentration in irrigation water. An EC sensor in the fertigation line confirms that the concentration reaching the field is the one you planned, on every cycle.

Source water and salinity

Well, reservoir, and reclaimed water change through the season. Monitoring source-water EC warns of rising salinity before it hurts a sensitive crop or throws off the fertigation recipe.

Hydroponics and soilless media

In water or detached-media growing, the EC of the solution and of the drainage is the heart of management. Continuous monitoring of both shows what the plant actually takes up and when the solution drifts from target.

The Agrinovo EC Sensor Range

Digital or analog, from clean source water to concentrated fertilizer lines. All connect to the same controller and the same dashboard.

Digital RS485

EC-100

Range
0.2 µS/cm to 100 mS/cm
Output
RS485 Modbus RTU

The primary choice for fertigation, hydroponics, and irrigation water monitoring: selectable cell constant and a range covering concentrated feed to source water.

View EC-100
Digital, selectable cell constant

EC-120

Range
0.2 µS/cm to 100 mS/cm
Output
RS485 Modbus RTU

The same measurement range in a body suited to pipeline and fertigation-line installs, with cell constant flexibility (K=0.1/1/10).

View EC-120
Analog

EC-10

Range
1 µS/cm to 2000 µS/cm
Output
Analog

Connecting to an existing controller or system with an analog input, at points where the standard irrigation-water range is enough.

View EC-10
Heavy-duty digital

EC-J100

Range
10 µS/cm to 200 mS/cm
Output
RS485 Modbus RTU

Lines with hard water, reclaimed water, or abrasive conditions: a rugged body and an extra-wide range.

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Conductivity and salinity

EC-110

Range
0 to 200 mS/cm + salinity 0-100 ppt
Output
RS485 Modbus RTU

Brackish water sources and direct salinity tracking: conductivity, salinity, and TDS from the same sensor.

View EC-110

Raising fish or running a RAS? The same sensors serve aquaculture: see the EC water quality sensor category. And for the soil itself, start with the tensiometer range.

Continuous Measurement, Controlled Fertigation

Every EC sensor connects to the Agrinovo Genesis controller. See the EC curve through the day on every line, get an alert when concentration drifts from target, and combine the data with soil monitoring on the same dashboard: what goes in with the water and what the root zone feels, side by side, as part of a complete precision agriculture setup.

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EC sensor questions, answered

Choosing, calibrating, and connecting conductivity sensors for agriculture

What is EC and why does it matter in agriculture?
EC (electrical conductivity) measures how much dissolved salt is in water. In agriculture that translates into two practical things: the fertilizer concentration of the nutrient solution (more dissolved fertilizer = higher EC) and the salinity of your source water. An in-line EC sensor gives you one number that summarizes both, continuously and without manual sampling.

What is the difference between EC and TDS?
TDS (total dissolved solids) is derived from EC through a conversion factor, so in practice both measure the same phenomenon in different units. Most of our digital sensors and controllers report both. For fertigation management the convention is to work directly in EC (mS/cm or dS/m).

Which EC sensor fits fertigation and hydroponics?
The digital EC-100 is the starting point for most fertigation and hydroponic systems: wide range, selectable cell constant, and RS485 output that connects straight to a controller. For lines in harsh conditions see the EC-J100, and for an analog connection to an existing system the EC-10.

Do the same sensors work for fish ponds and aquaculture?
Yes, and that is exactly why the system is modular: the same EC sensors serve greenhouse fertigation, orchard irrigation water, and a fish pond. If you are in aquaculture, see the EC water quality sensor category for the full aquaculture context.

How much does an EC sensor cost?
The price depends on the model (digital or analog), the measurement range, and whether the sensor connects to a Genesis controller for continuous monitoring and alerts. Our pricing is by tailored quotation. Tell us about your system and we will come back with a concrete recommendation and quote.

Does an EC sensor need calibration?
Yes, like every conductivity sensor. Calibrate against a reference solution at a frequency that depends on line conditions: concentrated fertilizer lines need more frequent checks than clean source water. Our digital sensors support calibration through the controller, without pulling the sensor out of the line for long.