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HI-6221 Advanced pH/ORP Benchtop Meter

SKU: HI-6221-02
Regular price £1,013.50
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HI-6221 Advanced pH/ORP Benchtop Meter

The HI-6221 Advanced pH/ORP Benchtop Meter, supplied by GAPS Water Treatment, is a laboratory-grade instrument designed to deliver research-level precision and efficiency in pH and ORP measurement. Combining a modern, streamlined form with unmatched connectivity, this meter is packed with features to streamline laboratory workflow and provide reliable, accurate results across a wide range of sample types.

Modern, Flexible Design

The HI-6221 features a sleek, compact casing with a large capacitive touch screen display that can be operated even while wearing gloves. Its small footprint saves bench space, while the included electrode holder arm can be mounted on either side for optimal flexibility and convenience.

Complete Package for Professional Labs

Supplied accessories:

  • HI-1131B double junction combination pH electrode (glass-bodied, refillable, suitable for high-temperature and complex samples)
  • HI-7662-TW stainless steel temperature probe (for automatic temperature compensation)
  • pH calibration starter kit (sachets of pH 4.01, 7.01, and 10.01 buffers)
  • HI-700601 electrode cleaning solution sachets
  • HI-7082 3.5M KCl electrolyte solution (30 mL)
  • HI-764060 electrode holder
  • Capillary pipette
  • 24 VDC power adapter
  • USB-C to USB-A cable
  • Instrument quality certificate and quick reference guide

Advanced Features and Connectivity

  • Five-point calibration: Automatic, semiautomatic, or manual, using standard Hanna or NIST buffers, or up to 5 custom buffers
  • Automatic temperature compensation: For accurate readings from -20.0 to 120.0°C
  • Large storage capacity: Save up to 1,000,000 data points, each with time and date stamps, for robust data management
  • Multiple measurement views: Choose from Basic, Simple GLP, Full GLP, tabulated, or graph views tailored to your application
  • Audible and visual alarms: Customizable for specific measurement thresholds, improving oversight and safety
  • Flexible placement: WiFi and Ethernet connectivity for anywhere-in-lab operation—no need for direct PC or printer connection
  • Efficient data transfer: Export data via WiFi, ethernet, USB-A, or USB-C in universally accessible .csv format
  • On-screen help and tutorials: Text and video guides accessible at any time through the HELP menu
  • User management: Create up to 9 users plus an admin, each with customized accessibility and account controls

Specifications

Parameter

Details

pH Range

-2.0 to 20.0 pH; -2.00 to 20.00 pH; -2.000 to 20.000 pH

pH Resolution

0.1 pH; 0.01 pH; 0.001 pH

pH Accuracy

±0.1 pH; ±0.01 pH; ±0.002 pH (±1 LSD)

mV Range

±2000.0 mV

mV Resolution

1 mV; 0.1 mV

mV Accuracy

±0.2 mV ±1 LSD

Temperature Range

-20.0 to 120.0 °C; -4.0 to 248.0 °F; 253.0 to 393.0 K

Temperature Resolution

0.1 °C / 0.1 °F / 0.1 K

Temperature Accuracy

±0.2 °C / ±0.4 °F / ±0.2 K

Calibration

Up to 5 points; auto, semi, or manual; up to 5 custom buffers

Logging

Automatic, manual, autohold; store up to 1,000,000 data points

Sample ID

Incremental mode

Export Option

.csv via USB-A, USB-C, wifi, ethernet

Connectivity

WiFi, Ethernet, USB-A (2), USB-C, RS232

Alarm System

Audible and visual, with customizable ranges

User Accounts

Up to 9 users + admin

Environment

0–50°C; max 95% RH non-condensing

Power Supply

24 VDC adapter (included)

Dimensions

205 x 160 x 77 mm

Weight

~1.2 kg

Five Distinct Measurement Views

  • Basic: Measured value, unit, temperature source
  • Simple GLP: Last calibration date/time, offset, slope, electrode condition
  • Full GLP: All above plus used buffers tray, calibration point details
  • Graph: Dynamic plot of values over time, zoom/pan available
  • Tabular: Table-format with full data and notes

On-Board Tutorial and Help System

  • Full text and video tutorials
  • Accessible with a single HELP button

Ordering Information

HI-6221 is supplied as a complete laboratory kit with all listed accessories and calibration solutions.

Frequently Asked Questions

What instruments are in the HI-6000 series?

  • HI-6221 (pH/ORP), HI-6321 (conductivity), HI-6421 (dissolved oxygen), HI-6000 (modular multiparameter)

Is the HI-6221 suitable for laboratory usage?

Yes, the HI-6221 is specifically engineered for laboratory use in research, industry and service labs requiring the highest accuracy and versatile data handling.

What are its key features?

  • Five-point calibration, WiFi/ethernet connectivity, high memory, compact and flexible design, on-screen tutorials, robust alarm systems, customizable user management, supplied with laboratory-grade probes and accessories.

Choose the HI-6221 Advanced pH/ORP Benchtop Meter, supplied by GAPS Water Treatment, for a new standard in laboratory measurement reliability, efficiency, and control.

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