Hanna Instruments

Hanna Instruments - Groline HI1285-7 pH/EC/TDS probe

Quantity

€169.99
33 loyalty points By purchasing this product
you will receive a voucher of €3.30
Tax included En cours de réapprovisionnement
Made to order - Ships within 7-10 days.

Hanna Instruments GroLine HI1285-7 — pre-amplified 3-in-1 pH/EC/TDS probe

Designed for nutrient solutions and hydroponics, the HI1285-7 combines pH , EC/TDS , and temperature in a single, rugged probe. Its pre-amplified pH electrode filters out pump and motor noise for stable readings. The removable fabric junction “refreshes” with a single touch when readings drift. The two-pin amperometric EC/TDS sensor ensures reliable conductivity, while automatic temperature compensation instantly adjusts readings. It features an impact-resistant polypropylene body and a Quick Connect DIN connector for quick connection with the HI9814 GroLine. A professional choice that’s simple and durable.

  • 3 key measurements in one compact probe to save time.
  • Pre-amplified pH electrode, stable even near pumps and ballasts.
  • Removable fabric junction: quick refurbishment, maximum longevity.

Order it before 15:00 today
and receive it on Friday, December 12, 2025 with Chronopost - Livraison express à domicile

Learn more

Accurate 3-in-1 pH/EC/TDS and temperature measurements

The HI1285-7 simultaneously tracks pH (0 to 13) , conductivity/dissolved solids (EC/TDS) , and temperature to provide accurate insight into your nutrient solutions. Automatic temperature compensation adjusts pH and EC/TDS on-the-fly for consistent results, without manual calculations.

Pre-amplified pH electrode: anti-noise, anti-drift

The pH circuit incorporates an amplifier that reduces common electrical interference in greenhouses (motors, pumps). The result: readable, stable, and repeatable values, even in “disturbed” electrical environments. The single-junction Ag/AgCl reference is powered by a reliable gel electrolyte .

Removable fabric junction: extends lifespan

When readings become erratic, simply pull the fabric junction gently to expose a fresh surface. This simple operation restores the electrode's response and significantly extends the probe's service life in nutrient media.

Two-pin amperometric EC/TDS sensor

EC/TDS is measured by an amperometric cell: an alternating voltage is applied and the current flowing through the two pins reveals the amount of dissolved ions. This approach provides reliable and reproducible measurements for managing mineral intake on a daily basis.

Built-in temperature compensation

The onboard temperature sensor powers real-time automatic pH and EC/TDS compensation . The recommended operating range is 0 to 50°C , ideal for greenhouses and hydroponic systems.

Robust and practical: polypropylene & spherical tip

The polypropylene body withstands handling and resists many aggressive products; the 8 mm spherical tip ensures regular contact with the sample. The probe supports up to 0.1 bar and connects via a 1 m 7-core cable for comfortable use in the field.

Quick connection and GroLine HI9814 compatibility

The Quick Connect DIN connector allows for instant assembly/disassembly. The HI1285-7 is specifically designed for the HI9814 GroLine waterproof portable multi-parameter meter , the perfect combination for simple and efficient monitoring of nutrient solutions.

Product Details

HI1285-7
Hanna Instruments - Groline HI1285-7 pH/EC/TDS probe