Hanna HI981030 GroLine Soil pH Tester

Measure pH Directly Where Your Plants Are Growing

The Hanna HI981030 GroLine Soil pH Tester is designed specifically for direct pH measurement in soil and soil slurries. Instead of using a conventional general-purpose pH electrode, the HI981030 incorporates a specialised built-in soil probe with a conical glass tip, open reference junction and removable sleeve.

It measures from 0.00 to 12.00 pH with 0.01 pH resolution and ±0.05 pH accuracy at 25°C, making it a practical tool for agriculture, horticulture, greenhouses, gardens and environmental soil testing.

Designed Specifically for Direct Soil pH Testing

The HI981030 is built for measurements directly in soil and soil slurries. Its specialised electrode design allows growers and technicians to check pH at the growing medium rather than relying on a conventional general-purpose water pH tester.

Conical Glass Tip for Easier Soil Penetration

A conical glass sensing tip helps the probe penetrate soil and soil slurries. This shape is particularly useful when taking measurements at multiple locations across a growing area.

Open Junction Helps Prevent Clogging

The open reference junction is designed for samples containing suspended solids such as soil. Unlike a conventional ceramic junction that can become clogged by soil particles, the open junction provides an open gel interface between the sample and the internal reference system.

Removable Sleeve for Cleaning and Maintenance

The electrode sleeve can be removed to clean the junction and replenish the reference electrolyte. This is particularly useful for soil testing, where particles and organic material can accumulate around the sensing area during repeated measurements.

0.01 pH Resolution

The tester measures across a 0.00 to 12.00 pH range with 0.01 pH resolution and a specified accuracy of ±0.05 pH at 25°C.

Automatic Temperature Compensation

Automatic Temperature Compensation operates from 0°C to 50°C, allowing pH measurements to be automatically compensated according to measurement temperature.

Automatic One or Two-Point Calibration

The HI981030 supports automatic one or two-point calibration, simplifying routine preparation of the tester before soil measurements.

Stability Indicator Helps You Know When to Record the Reading

An on-screen stability indicator helps identify when the pH reading has stabilised, reducing the need to judge measurement stability manually.

Soil Auger Included for Consistent Sampling

A HI721319 soil auger is included with the tester. It can be used to prepare a measurement hole before inserting the electrode, helping reduce the risk of forcing the glass sensing tip into hard or compacted ground.

PVDF Probe Body for Agricultural Environments

The probe body is manufactured from PVDF, a material selected for its chemical resistance, mechanical strength and resistance to many commonly used disinfecting chemicals.

Designed for Growers and Soil Testing

The HI981030 is particularly suited to growers who need to monitor soil pH before planting, during crop development or when adjusting soil conditions. Measurements can be taken at multiple locations to build a better picture of pH variation across the growing area.

Key Features

• Designed specifically for direct soil pH measurement
• Suitable for soil and soil slurries
• 0.00 to 12.00 pH measurement range
• 0.01 pH resolution
• ±0.05 pH accuracy at 25°C
• Automatic 1 or 2-point calibration
• Automatic Temperature Compensation from 0°C to 50°C
• Specialised built-in soil pH electrode
• Conical glass sensing tip
• Open reference junction
• Removable sleeve for cleaning and maintenance
• PVDF probe body
• On-screen stability indicator
• Selectable automatic shut-off
• Soil auger included

Technical Specifications

Model	Hanna HI981030 GroLine
Product Type	Soil pH Tester
Application	Direct measurement in soil and soil slurries
pH Range	0.00 to 12.00 pH
pH Resolution	0.01 pH
pH Accuracy	±0.05 pH at 25°C
pH Calibration	Automatic, 1 or 2 point
Temperature Compensation	Automatic, 0°C to 50°C
Electrode	Built-in specialised soil pH electrode
Reference Junction	Open junction with removable sleeve
Glass Tip	Conical
Probe Body	PVDF
Stability Indicator	Yes
Auto-Off	8 minutes, 60 minutes or disabled
Battery	CR2032
Battery Life	Approx. 800 hours of continuous use
Operating Environment	0°C to 50°C; maximum 95% RH
Dimensions	51 × 151 × 21 mm
Weight	46 g

Typical Applications

• Agricultural soil testing
• Horticulture
• Greenhouses
• Commercial growing
• Gardens and landscaping
• Soil and growing media
• Environmental soil testing
• Crop management

What’s Included?

• Hanna HI981030 GroLine Soil pH Tester
• HI70004 pH 4.01 Buffer Solution – 20 ml Sachet × 2
• HI70007 pH 7.01 Buffer Solution – 20 ml Sachet × 2
• HI700663 Cleaning Solution for Soil Deposits
• HI700664 Cleaning Solution for Humus Deposits
• HI9072 Electrode Storage Solution – 13 ml Dropper
• HI9071 Gelled Bridge Electrolyte – 13 ml Dropper
• HI721319 Soil Auger
• CR2032 Battery
• Instrument Quality Certificate
• Instruction Manual

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