The HI2621 Benchtop Meter for pH/ORP with datalogging is designed for precise measurements in modern laboratories. It combines Hanna Instruments’ measurement expertise with advanced digital electrode technology and an intuitive interface. The large 5.5 inch LCD display provides clear readings that can be viewed from several meters away. Capacitive touch keys allow smooth navigation through menus and functions. The meter works with smart digital electrodes that are automatically recognized when connected. Calibration data, sensor type and serial number are immediately displayed. Integrated temperature measurement and internal signal processing provide stable and noise-free measurements.
Advanced datalogging
The HI2621 can store up to 1000 measurement records including readings, GLP data, date and time stamps. Data can easily be transferred to a computer using the integrated USB-C connection.
Diagnostic tools for reliable measurements
CAL Check analyzes the pH electrode response during calibration and detects issues such as contaminated buffers or dirty electrodes. Sensor Check monitors the condition of compatible electrodes and can detect problems such as glass breakage or clogged junctions.
Compact laboratory design
With a small footprint and a weight of only 850 g, the HI2621 fits easily on crowded laboratory benches while still offering advanced measurement capabilities.
Key features
- pH and ORP measurements in one benchtop meter
- Storage for up to 1000 measurement records
- Standard and Basic operating modes
- Large 5.5 inch LCD display with full text prompts
- Automatic digital electrode recognition
- GLP data including date, time, offset and slope
- CAL Check electrode diagnostics
- Sensor Check electrode monitoring
- Selectable pH resolution 0.01 or 0.001 pH
- USB-C connection for data transfer
- Automatic temperature compensation
Digital electrodes for precise measurements
The HI2621 uses smart digital electrodes connected through a 3.5 mm jack. The electrode processes the signal internally which minimizes noise and improves measurement stability. See the benefits underneath:
- Automatic sensor recognition
- Calibration data stored in the probe
- Integrated temperature measurement
- Materials suitable for chemical analysis
- Unique serial number for traceability
Differences HI2621 und HI2620
| HI2621 | HI2620 |
| Standard and Basic operating modes | Basic operation mode |
| Datalogging up to 1000 records | No datalogging |
| pH resolution up to 0.001 pH | pH resolution up to 0.01 pH |
| 5 point calibration | 3 point calibration |
| USB-C data transfer to computer | - |
Specifications
| 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/77°F) | ±0.01 pH; ±0.002 pH† |
| pH Calibration | automatic, up to three points (five points†) calibration, 5 standard (7 standard†) buffers available (1.68†, 4.01 or 3.00, 6.86, 7.01, 9.18, 10.01, 12.45†) and two custom buffers† |
| pH Temperature Compensation* | automatic, -5.0 to 100.0°C (using built-in temperature sensor) |
| pH Electrode Diagnostics | standard mode: probe condition, response time and out of calibration range |
| mV pH Range | ±1000 mV |
| mV pH Resolution | 0.1 mV |
| mV pH Accuracy (@25°C/77°F) | ±0.2 mV |
| ORP Range | ±2000 mV |
| ORP Resolution | 0.1 mV |
| ORP Accuracy (@25°C/77°F) | ±0.2 mV (±999.9 mV); ±1 mV (±2000 mV) |
| ORP Calibration | One-point calibration |
| Temperature Range* | -20.0 to 120.0°C |
| Temperature Resolution | 0.1°C |
| Temperature Accuracy | ±0.5°C |
| Probe | HI11310 digital glass body pH electrode with 3.5 mm connector and 1 m cable |
| Logging | up to 1000† (400 for basic mode) records organized in: manual log-on-demand (max. 200 logs), manual log-on-stability (max. 200 logs), interval logging† (max. 600 samples; 100 lots) |
| Connectiviteit | 1 USB-C port for PC connectivity |
| Environment | 0 to 50°C; RH max 95% non-condensing |
| Power Supply | USB Type C (5 VDC; 500 mA) |
| Dimensions | 205 x 160 x 77 mm |
| Weight | Approximately 850 g |
* limits will be reduced to actual probe limits
† standard mode only
Scope of delivery
- HI2621 Benchtop Meter for pH/ORP with Datalogging
- HI11310 pH electrode
- Calibration kit
- Cleaning fluid
- Electrode holder
- 1.5 m USB-C cable
- Quality certificates
User Manual
Product information HI2621
