The HI7635 electrical conductivity probe is used to measure the electrical conductivity of water used in irrigation. Its readings enable the controller to control the fertilizer injection.

Injecting fertilizer into the irrigation system increases the water’s electrical conductivity. This water conductivity sensor is used in agriculture to optimize the amount of liquid fertilizer for the crop.

To do this, a target conductivity value is established in the controller based on the crop cycle type and phase. The amount of fertilizer used in each of the tanks can also be configured, whether calcium, phosphorus, nitrogen, etc. When the target conductivity value is reached, the irrigation controller stops injecting fertilizer.



  • Connects the Electrical Conductivity probe to the Maher Probe Transmitter so that the controller can interpret and act on the data received
  • It combines the extensively tested four-ring potentiometric method, which provides a very stable measurement over a wider range. These probes are not polarized, nor do they need frequent calibration or cell changes.
  • The probe has a one-piece tubular body reinforced with a 1″ female thread at the ends that facilitates assembly. The chassis is resistant, reinforced with propylene fiber. The maximum working pressure of this electrical conductivity sensor is 5 bar.
  • It has a temperature sensor that automatically provides temperature compensated measurements and easy operation and maintenance features.
  • Includes a four-meter cable and has color coded cables for easy connection to the probe transmitter.

You may also like…