
Hanna Instruments-98331 Groline Direct Soil Conductivity (EC) & Temperature Tester
The Hanna Groline Hanna Instruments-98331 pocket-sized tester is designed specifically to measure the conductivity and temperature of soil. Featuring a stainless steel rugged and reliable probe.
The Hanna Instruments-98331 Soil Test™ is a pocket tester specifically designed to directly measure soil conductivity and temperature. With a temperature sensor in the penetration probe, measurements are automatically temperature compensated.
The conductivity range can be calibrated at one point and is designed to be performed in a standardised solution.
Key features
- Replaceable 114 mm stainless steel penetration probe
- Automatic Temperature Compensation
- Lightweight and portable
- Easy to read screen
- One-button operation
- Hanna Instruments-73331 penetration conductivity probe
- Calibration screwdriver
- Batteries and instructions

Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.