HANNA GroLine Soil Test Direct Soil Conductivity Tester
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Quick & Accurate Soil Conductivity Measurement
The HI98331 Soil Test™ is a portable pocket tester designed to directly measure soil conductivity (EC) and temperature with precision and ease. Featuring a durable stainless steel penetration probe and automatic calibration, it provides reliable results without the need for soil slurries. Perfect for agriculture, horticulture, and environmental testing, it’s a must-have tool for growers and soil scientists alike.
- Features & Benefits
- Product Specifications
- What is included?
- Warranty Policy
HANNA GroLine Soil Test Direct Soil Conductivity Tester
Compact yet powerful, the HI98331 makes soil testing effortless. With single-button operation, automatic temperature compensation, and a comfortable handheld design, it delivers accurate readings while standing up to rugged field conditions.
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No soil slurries needed for testing. -
One-point calibration at 1.41 mS/cm.
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Ensures accurate, temperature-compensated readings.
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Easy to carry for field use.
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Built for consistent, long-lasting performance.
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Saves battery life with customizable settings.
Fast, Accurate, and User-Friendly
The HI98331 helps you monitor soil health quickly and efficiently. Its direct measurement capability saves time, while automatic compensation ensures reliability. Ideal for managing crop growth, irrigation planning, and environmental research, it simplifies soil conductivity testing for professionals and hobbyists alike.
Why HANNA GroLine?
HANNA Instruments delivers precision, durability, and reliability trusted by professionals worldwide. Their rugged, waterproof meters provide accurate, consistent readings in any environment, from agriculture to environmental testing. With easy calibration, replaceable probes, and long battery life, HANNA offers long-term value and portability, ensuring dependable results and confidence in every measurement.
Why Buy From Us?
At GreenThumbDepot, you're not just another sale to a faceless corporation. You're partnering with a team genuinely invested in your success. Our legendary customer service, combined with a promise of unbeatable prices, sets us apart. We're here for you, always.
If I could rate 6 stars I would! My representative Edouard B. has been shockingly responsive! Like - oh my god - an actual SERVICE oriented company. He's dug into my odd connectivity issues I've been having - and following up in an AMAZINGLY timey manner. No shit. You'll be impressed! (And the price was also unbeatable, quick shipping...it's all PERFECT). Thank you Ed!!
Customer service was outstanding great people to deal with they understand your needs and they will do their best to fulfill them there is no way I can complain about them because they are the best help out there.Thanks green thumb depot. I'll definitely order from them again
The machine is doing just what my salesman told it would do (I appreciate you Ed thank you) . The machine is what we need for our new business we're starting up, soon to be llc and licensed. We are getting a lot of clients wanting our services. Ed I will be needing more of your products, thank you again.
Great prices, fantastic customer service, and mind blowing shipping! Incredible. Will be using again and telling anyone in need.
FAQ Section
Specifications 
| HANNA GroLine Soil Test Direct Soil Conductivity Tester | |
|---|---|
| Product Name | HI98331 Soil Test™ Direct Soil Conductivity Tester |
| SKU | HI98331 |
| EC Range | 0 to 4000 μS/cm (0.00 to 4.00 mS/cm) |
| EC Resolution | 1 μS/cm, 0.01 mS/cm |
| EC Accuracy | ±50 μS/cm (0-2000 μS/cm), ±300 μS/cm (2000-4000 μS/cm) |
| Calibration | Automatic, one-point (1.41 mS/cm) |
| Temperature Range | 0.0 to 50.0°C (32.0 to 122.0°F) |
| Temperature Resolution | 0.1°C (0.1°F) |
| Temperature Accuracy | ±1°C (±1.5°F) |
| Probe | 114 mm (4.5 in.) stainless steel fixed penetration probe |
| Automatic Shut-Off | 8 minutes, 60 minutes, or disabled |
| Battery Type / Life | CR2032 Li-ion / Approx. 100 hours of continuous use |
| Dimensions | 50 x 196 x 21 mm (2.0 x 7.7 x 0.9 in.) |
| Weight | 74 g (2.4 oz.) |
| Environment | 0 to 50°C (32 to 122°F), RH max 95% |
What is included?
It includes:
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HI98331 Soil Test™ Conductivity Tester
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HI73331 Penetration Conductivity Probe
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Calibration Screwdriver
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CR2032 Lithium Battery
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User Instruction Manual
Warranty Policy
Please check out the manufcaturers website for Warranty related issues.
