Hanna Instruments Australia
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Sales: (03) 9769 0666   |    Mon to Fri: 8:30am – 5:00pm
Hanna Instruments Australia
Sales: (03) 9769 0666   |    Mon to Fri: 8:30am – 5:00pm

HI76310 EC/TDS Probe for HI2300


SKU: HI76310 Category

Prices include GST. Not all items are in stock. Call 03 9769 0666 to confirm.

The HI76310 is a platinum, four-ring EC/TDS probe with a built-in temperature sensor.

  • For use with HI2300 Autoranging Bench Meter
  • Operates over a wide range from 0.00 µS/cm to 500.0 mS/cm
  • 3.5 mm (1/8”) connector and 1 m (3.3’) cable


“EC” stands for Electrical Conductivity. Electrical conductivity is defined as the ability of a substance to conduct an electrical current. Conductivity in a solution is directly proportional to the concentration of salts. Conductivity is temperature dependent and will rise in proportion to a temperature increase.

EC is recorded in mS (milliSiemens) or µS (MicroSiemens).

1 mS = 1000 µS

TDS (Total Dissolved Solids) is a proportion of EC and is usually recorded in ppm (parts per million). Three common proportion multiplying factors are: 0.7 (hydroponics), 0.64 (soil science), and 0.5 are used to convert EC to TDS. For example, if the measured EC is 1000 µS, this can be converted by multiplying it by 0.7 (hydroponics) which equals 700 ppm.

Four-ring conductivity probes utilize a potentiometric approach to measure EC. An alternating current is applied to the outer two “drive” electrodes to induce a current in the solution. The voltage is measured between the inner pair of electrodes in solution. The voltage is proportional the conductivity of the sample. This technology extends the linear range of measurement, and reduces polarization effects.

The four-rings in the HI76310 are made with platinum and the body of the electrode is made of Polyetherimide (PEI) plastic that is resistant to many harsh chemicals. The four-ring design allows for this probe to be used over a wide range of measurements.

SKU HI76310
Name HI76310 EC/TDS Probe for HI2300

HI7631016 EC/TDS probe is supplied with probe and quality testing certificate.

All prices are inclusive of GST and not all items are stock items, if you require an immediate solution please send an email to sales@hannainst.com.au or call us on (03) 9769 0666.

Free standard delivery: We offer free delivery within Australia on orders over $100, typically arriving within 5 to 7 days. Delivery times may vary depending on the courier service and the recipient's location. Free shipping is not available with other offers or discounts.

Same-day despatch: Place your order before 1 PM Monday to Friday for same-day despatch. Delivery times may vary depending on the courier service and the recipient's location. Subject to stock availability.

Please note that we do not offer shipping to PO Box addresses.

Additional information

Weight 0.45 kg