GroLine pH/EC/TDS Multiparameter Probe


  •  Built-in temperature sensor ensures fast, accurately compensated readings even during sudden temperature fluctuations.
•  One probe. Three measurements.
•  Specialized for hydroponics with a renewable junction for extended life.

  Pre-Amplified pH Electrode
•  The pH electrode circuit has a built-in amplifier that serves to reduce the effects of electrical noise on the high impedance pH measurement.
•  Electrical noise can come from motors and pumps that are common in greenhouses.
•  The single reference junction design of the pH electrode has a cloth junction that allows ion movement between the inner gel electrolyte and the sample being measured.
•  The advantage of the cloth junction is that it can be extracted from the probe, exposing a fresh surface when readings become drifty or erratic.
•  These features make this probe ideal for use in fertilizer solutions.

  Amperometric EC/TDS Sensor
•  EC/TDS readings are performed by a two-pin amperometric sensor.
•  An alternating voltage is applied to the sensor and the amount of current that passes between the two stainless steel pins determines the
amount of dissolved ionic solids present.

  Built-In Temperature Sensor
•  pH and EC/TDS readings must be temperature compensated in order to obtain accurate results
•  The built-in temperature sensor of the HI1285-8 provides a speedy temperature reading which is then used to adjust the pH and EC/TDS results accordingly.

  Polypropylene Body
•  The polypropylene body of the HI1285-8 houses all three sensors within a sturdy, single body design.
•  This body material is suitable for a wide range of applications and excels in harsh grow environments due to its durability.
•  The polypropylene plastic is a high quality plastic that is chemically resistant to many aggressive chemicals and minimizes breakage due to accidental
bumping or dropping of the electrode.

  DIN Connector
•  The HI1285-8 uses a DIN connector.
•  This probe is recommended for use with the HI981420 GroLine Hydroponic Nutrients Monitor for pH, EC, TDS, and Temperature.


    Measurement Range                 :  pH: 0 to 13, EC
    Junction Type/Flow Rate          :  cloth
    Type of Electrolyte                    :  gel
    Body Material                           :  polypropylene
    Tip / Shape                               :  spheric (8 mm)
    Matching Pin                            :  no
    Max. Pressure                           :  0.1 bar
    Temperature Operating Range  :  0 to 50°C (32 to 122°F) – LT
    Temperature Sensor                 :  yes
    Cable                                        :  7-pole; 2 m (6.6’)
    Connector Type                        :  DIN
    Amplifier                                  :  yes
    Recommended Use                   :  Hydroponics, Aquaponics, and Greenhouses

Order now

To make your order, please contact us at  info@polyscientific.com.my or call us at +6 06 3350 690

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