HI2600 enables fast, accurate measurements utilizing Hanna digital electrodes. HI2600 is available as a pH kit bundled with the HI11310 pH digital electrode. Additional digital pH electrodes as well as digital probes to measure conductivity and dissolved oxygen are also available.
Each digital electrode/probe has a unique serial number, and the parameter it measures is automatically identified by the meter. Once connected, the sensor is ready to measure the parameter along with temperature.
The intuitive design simplifies configuration, calibration, measurement, data logging, and transfer of data to a USB thumb drive or computer. The benchtop meter offers a Basic Mode that streamlines measurement configuration for routine applications, as well as a full-featured Standard Operating Mode for advanced features.
The compact meter can be used as a portable device (using its rechargeable battery) or as a laboratory instrument.
Features at a Glance
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Large display with capacitive keys
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The meter features a 5.5” (14 cm) LCD display. The large display provides a 130 ° wide viewing angle
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Automatic parameter recognition
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pH/ORP choice of measurement units:
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pH, mV
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EC choice of measurement unit:
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Conductivity: μS/cm, mS/cm
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TDS › ppm (mg/L), g/L
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Salinity › NaCl, PSU, g/L
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DO choice of measurement unit:
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ppm (mg/L), %
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Adjustable resolution for pH and EC measurements
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CAL Check™ indicators (HI11310, HI763100, HI764080 digital probes only)
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Sensor Check™ indicators (HI11311 and HI12301 digital probes only)
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Basic mode for simplified operation
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Dedicated GLP key
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GLP data included with logged data
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Simplified data transfer to a PC
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Rechargeable battery provides up to 8 hour battery life when used as a portable device.
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Internal clock and date
Detailed Feature Descriptions
Clear, Full Text Readout
The HI2600 presents clear, detailed text prompts at the bottom section of the screen to guide the user.
Two Operating Modes
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Standard Mode: Enables all advanced features.
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Basic Mode: Displays a simplified screen and features—ideal for routine measurements (pH and EC only).
CAL Check™
Hanna’s exclusive feature analyzes the pH electrode’s response in calibration buffers to detect potential issues such as contaminated solutions or dirty electrodes. Upon completion, indicators reflecting the probe’s condition (offset and slope) are displayed.
Sensor Check™ (HI11311 and HI12301 only)
Continuously monitors the impedance of the pH measuring electrode, providing real-time alerts for glass breakage. During calibration, it evaluates the reference junction resistance.
Data Logging & GLP
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Storage: Up to 1000 log records (readings, GLP info, date, and time).
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GLP: The sensor retains the most recent calibration data (date, time, and buffers). This information is automatically transferred when connected.
Digital Electrodes
These probes are auto-recognized and provide sensor type, calibration data, and serial numbers.
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Direct Signal Processing: Noise-free measurements.
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Interchangeable: Change electrodes without recalibrating.
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Connection: 3.5 mm jack connectors are sealed against moisture and corrosion.
Physical Design & Connectivity
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Rear View: Features a USB-C port for charging and data transfer to a computer or flash drive.
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Side View: Small footprint (205 x 160 x 77 mm) and lightweight (850 g), perfect for crowded workspaces.
Technical Specifications
| Parameter / Feature | Detailed Specification |
| pH Range | -2.00 to 16.00 pH; -2.000 to 16.000 pH* |
| pH Resolution | 0.01 pH; 0.001 pH* |
| pH Accuracy (@25°C) | ±0.01 pH; ±0.002 pH* |
| pH Calibration | Automatic, up to 3 points (5 points*); 5 standard buffers (7*) |
| mV Range (pH probe) | ±1000 mV (Resolution: 0.1 mV; Accuracy: ±0.2 mV) |
| ORP Range | ±2000.0 mV (Accuracy: ±0.2 mV up to ±999.9 mV; ±1 mV beyond) |
| EC Range | 0.00 μS/cm to 500.0 mS/cm absolute conductivity‡ |
| EC Resolution | 0.01 μS/cm to 0.1 mS/cm (varies by range) |
| EC Accuracy (@25°C) | ±1% of reading (±0.05 μS/cm or 1 digit, whichever is greater) |
| TDS Range | 0.00 ppm to 400.0 g/L absolute TDS‡ (with 0.80 factor) |
| TDS Accuracy (@25°C) | ±1% of reading (±0.03 ppm or 1 digit, whichever is greater) |
| Salinity Range | 0.0 to 400.0% NaCl; 2.00 to 42.00 PSU; 0.00 to 80.00 g/L |
| Salinity Accuracy | ±1% of reading |
| DO Range | 0.00 to 45.00 ppm (mg/L); 0.0 to 300.0% |
| DO Accuracy | ±1.5% of reading ±1 digit |
| DO Calibration | One or two points at 0% (HI7040) and 100% (water-saturated air) |
| Temperature Range | -20.0 to 120.0°C (-4.0 to 248.0°F) |
| Temperature Accuracy | ±0.5 °C (±0.9 °F) |
| Logging Capacity | Up to 1000 records (Manual log-on-demand/stability and Interval*) |
| Power Supply | USB Type C (5 VDC; 500 mA) with 8-hour rechargeable battery |
| Dimensions & Weight | 205 x 160 x 77 mm; approx. 0.85 kg (1.87 lbs.) |
| Environment | 0 to 50 °C (32 to 122 °F); Max 95% RH non-condensing |


