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Hanna Instruments – HI981030 GroLine Soil pH Tester with 0.01 Resolution

The HI981030 GroLine Soil pH Tester from Hanna Instruments is a compact, pocket-sized meter designed for fast, accurate soil pH measurements. With 0.01 pH resolution and ± 0.05 pH accuracy, it features a replaceable pH electrode with open junction and PVDF sleeve, automatic one- or two-point calibration, and an on-screen stability indicator for reliable readings. Lightweight and portable, it is ideal for field use, with long battery life and included cleaning and storage solutions to maximize electrode performance and longevity.

  • 0.01 pH Resolution with ± 0.05 Accuracy
  • PVDF Body with Removable Sleeve & Open Junction Electrode
  • Long Battery Life (~1000 Hours)
  • Automatic One- or Two-Point Calibration with Buffer Sachets Included

Description

The HI981030 GroLine Soil pH Tester is designed for fast and reliable soil pH analysis in the field or greenhouse. Covering a range of 0.00 to 12.00 pH with 0.01 resolution, this tester delivers high-precision readings with ± 0.05 accuracy at 25°C (77°F). The large LCD and single-button operation make it easy to read and use, while the on-screen stability indicator ensures confidence in each measurement. User-selectable automatic shut-off conserves battery life and prevents accidental energy loss in long testing sessions.

Durability and maintenance ease are built into the design with a PVDF body and removable sleeve for the electrode, which allows quick cleaning and refresh with gel electrolyte. The open junction reference minimizes interference from soil humus and improves response time. The kit includes specialized cleaning solutions for soil and humus deposits, pH 4 & 7 buffer sachets for calibration, and a storage solution to keep the electrode hydrated and ready for consistent measurements. Lightweight and portable at just 44 g, the HI981030 is perfect for agronomists, gardeners, and soil scientists who require accurate, repeatable soil pH readings on the go.

Features

  • High Precision Measurement – pH range 0.00–12.00 with 0.01 resolution and ± 0.05 pH accuracy at 25°C.
  • PVDF Body with Removable Sleeve – Durable food-grade plastic body; electrode sleeve can be removed for cleaning and refreshed with gel electrolyte.
  • Open Junction Electrode – Solid gel interface between soil sample and Ag/AgCl reference; improves measurement speed and reliability.
  • Automatic One- or Two-Point Calibration – Includes single-use pH 4 & 7 buffer sachets for accurate calibration every time.
  • On-Screen Stability Indicator – Confirms readings are stabilized for reliable results.
  • Long Battery Life – CR2032 lithium ion battery provides up to 1000 hours of continuous use, with low battery indicator.
  • Cleaning Solutions Included – Specialized solutions for soil and humus deposits to maintain electrode performance.
  • Storage Solution Provided – Keeps the pH electrode hydrated to ensure consistent performance and long life.
  • Pocket-Sized Design – Compact, lightweight, and easy to carry with large LCD for quick at-a-glance readings.
  • User-Selectable Auto-Off – Conserves battery life and prevents accidental energy waste.

Specifications

SKU HI981030
Product Name GroLine Soil pH Tester with 0.01 Resolution – HI981030
Quote Required Yes
pH Range 0.00 to 12.00 pH
pH Resolution 0.01 pH
pH Accuracy ± 0.05 pH @ 25 °C / 77 °F
pH Calibration automatic one or two-point
pH Electrode pH electrode with replaceable bridge electrolyte
Automatic Shut-Off user selectable
Battery Type/Life CR2032 lithium ion battery (1) / approximately 1000 hours of continuous use
Environment 0 to 50°C (32 to 122°F); RH 95% max
Dimensions 50 x 151 x 21 mm (2 x 5.9 x 0.9”)
Weight 44 g (1.6 oz.)
Ordering Information HI981030 is supplied with built in soil pH electrode, HI70004 pH 4.01 buffer solution sachet (2), HI70007 pH 7.01 buffer solution sachet (2), HI700630 electrode cleaning solution for soil deposits sachet (1), HI700664 electrode cleaning solution for humus deposits sachet (1), HI9072 storage solution (13 ml), HI9071 replacement bridge electrolyte, instruction manual, instrument quality certificate, and plastic carrying case

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