Hanna Instruments HI73311 Spare EC/TDS Electrode (for HI98311 & HI98312)

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Hanna InstrumentsSKU: hy06028000024

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Hanna Instruments HI73311 Spare EC/TDS Electrode (for HI98311 & HI98312)

Replacement Conductivity Sensor • Amperometric Graphite • Fast Swap for Accurate EC/TDS Readings

The Hanna Instruments HI73311 is the official replacement conductivity (EC) and TDS electrode for the HI98311 and HI98312 testers. If your EC/TDS readings have become unstable, slow to respond, or hard to calibrate, replacing the sensor is a simple way to restore reliable performance—especially for routine water quality and nutrient-strength checks.

This spare electrode features an amperometric graphite sensor, designed for consistent conductivity measurements and reliable day-to-day testing.

Compatible Hanna Testers

The HI73311 spare EC/TDS electrode is compatible with:

  • HI98311 EC/TDS tester

  • HI98312 EC/TDS tester

(Made specifically for these models.)

Why Replace Your EC/TDS Electrode?

✔ Restores accuracy and response time

EC/TDS sensors can wear over time, especially when used in nutrient solutions or higher-mineral water. A fresh electrode helps bring back stable, repeatable readings.

✔ Simple spare part for routine maintenance

Keeping a spare electrode on hand helps reduce downtime and maintain a consistent testing workflow.

✔ Amperometric graphite sensor

Designed for dependable EC and TDS measurements with compatible Hanna handheld testers.

What This Product Is

  • Product: Spare amperometric graphite conductivity (EC) and TDS electrode

  • Use: Replacement sensor for HI98311 & HI98312 testers

Technical Specifications (Highlights)

Product Type Spare EC/TDS electrode (amperometric graphite)
Measurements Conductivity (EC) and TDS (via compatible tester)
Body Material Polypropylene
Sensor Material Graphite (amperometric)
Max Pressure 0.1 bar
Operating Temperature -5 to 50°C (23 to 122°F)
Temperture Sensor No
Amplifier No
Cable No
Connector/Fit Replaceable electrode module for HI98311/HI98312 (snap-in/plug-in style, no cable)
Recommend Use Field applications, general purpose EC/TDS testing

 

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Shipping

Most products ship within 1 to 3 business days. Some items might take longer as they are delivered from our warehouse in Vancouver. As soon as we receive your tracking number, we will send it over to you.

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In order to make sure you are completely satisfied, we can send you a return label within 14 days of receiving the order. This is to guarantee that you are happy with the product. Some products might require a 10-25% restocking fee. Please visit our full return policy.

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