

The AELAB A120/130/131 Professional pH/ORP/Ion Meter series delivers high-precision measurements for pH, ORP, ion concentration, and water hardness. Engineered for laboratory and field applications, it features multi-point calibration, ATC, advanced data management, and user-friendly automation—ensuring reliable results for professional lab users.
The A120/130/131 Professional pH/ORP/Ion Meter offers accurate and versatile measurement for pH, ORP, ion concentration, and water hardness. It supports 1 to 5-point calibration with auto-buffer recognition for pH, ensuring ease of use and reliable results. Automatic Temperature Compensation (ATC) ensures accurate pH readings across varying conditions. The meter also provides 1-point ORP calibration, and features selectable ion measurement methods and multiple concentration units. For water hardness, it supports 2 to 5-point calibration with several unit options.
Other key features include a Stability Indicator, Auto-Read function, Interval Readings for automated data transfer, and USB connectivity. Password protection secures calibration settings, while Calibration Due Reminder helps maintain consistent performance. The device also has a Reset feature to restore factory settings. Ideal for professionals, it’s designed for precise and efficient testing in labs and field applications.
Features:
✅ 🔬 How It Works?
This professional meter utilizes advanced electrode-based sensing to provide real-time, high-accuracy measurement. The pH function uses auto-buffer recognition and ATC to ensure calibration reliability. The ORP function includes relative and absolute modes with 1-point offset calibration. For ion and hardness testing, the device supports advanced methods (known addition/subtraction, sample addition/subtraction) and automatically detects ion-selective electrodes. Data is securely stored and transferred via USB, with the Auto-Read and Stability Indicator guaranteeing consistent readings.
✅ 💡 Advantages
🔁 Multi-parameter Capability: Consolidates pH, ORP, ion, and hardness tests in one unit
⚡ Accurate & Reliable: ±0.002 pH accuracy and up to 5-point calibration
🔐 Secure Operation: Password protection and Calibration Due Reminders
📊 Smart Interface: Auto-Read, Stability Indicator, and interval readings simplify lab work
🔌 Easy Data Handling: USB transfer and calibration reports for documentation
🔄 Reset Option: Restore factory settings instantly for troubleshooting or setup
✅ 🔍 Recommended Models by Use Case
A120: Ideal for academic labs or water testing facilities needing only pH and ORP
A130: Best for research institutions and environmental testing needing full-spectrum measurement
A131: Suited for high-throughput labs and QC departments focused on ion analysis and hardness
✅ 🧪 Ideal For
Environmental and water quality testing labs
Food and beverage industry QC labs
Pharmaceutical R&D departments
Educational and academic research institutions
Industrial process labs requiring ion or hardness control
✅ ❓ FAQ – Lab-Focused
Q: How is calibration done?
A: Calibration is easy with push-button, 1–5-point calibration. Auto-buffer recognition supports USA, NIST, DIN, or custom buffers.
Q: Is the device GMP compliant?
A: Yes. Features like password protection, calibration logs, and traceability support GMP workflows.
Q: How long is the warranty?
A: AELAB provides a 1-year standard warranty with optional extended coverage.
Specifications :
| Model | A120 | A130 | A131 | ||
|---|---|---|---|---|---|
| pH | Measuring Range | -2.000 - 20.000pH | • | • | -- |
| Accuracy | ±0.002pH | • | • | -- | |
| Resolution | 0.001, 0.01pH | • | • | -- | |
| Calibration Points | 1 - 5 points | • | • | -- | |
| pH Buffer Options | USA, NIST, DIN or Custom | • | • | -- | |
| mV | Measuring Range | ±2000mV | • | • | -- |
| Accuracy | ±0.2mV | • | • | -- | |
| Resolution | 0.1mV | • | • | -- | |
| Calibration Points | 1 point, only for relative mV mode | • | • | -- | |
| Measurement Modes | Relative and Absolute mV | • | • | -- | |
| Ion | Measuring Range | 0.001 - 30000, depending on the range of ion selective electrode | -- | • | • |
| Measurement Units | ppm, mg/L, mol/L, mmol/L | -- | • | • | |
| Accuracy | ±0.5% F.S (Monovalent), ±1% F.S (Divalent) | -- | • | • | |
| Resolution | 0.001, 0.01, 0.1, 1 | -- | • | • | |
| Calibration Points | 2 - 5 points | -- | • | • | |
| Calibration Solutions | 0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000ppm, mg/L, mol/L, mmol/L | -- | • | • | |
| Measurement Methods | Direct reading, known addition, known subtraction, sample addition, sample subtraction | -- | • | • | |
| Water Hardness | Measuring Range | 0.05 - 2000mmol/L, 0 - 1120°fH, 0 - 1404°e, 0 - 2000°TH, 0 - 8000mg/L (Ca²⁺) | -- | • | • |
| Accuracy | ±1% F.S | -- | • | • | |
| Resolution | 0.001, 0.01, 0.1, 1 | -- | • | • | |
| Calibration Points | 2 - 5 points | -- | • | • | |
| Calibration Solutions | 0.01, 0.1, 1, 10, 100mmol/L | -- | • | • | |
| Temperature | Measuring Range | 0 - 105°C, 32 - 221°F | • | • | • |
| Accuracy | ±0.5°C, ±0.9°F | • | • | • | |
| Resolution | 0.1°C, 0.1°F | • | • | • | |
| Calibration Points | 1 point | • | • | • | |
| Temperature Compensation | 0 - 100°C, 32 - 212°F, Manual or Automatic | • | • | • | |
| General | Data Hold | Manual or Auto - Endpoint | • | • | • |
| Stability Criteria | Standard or High - accuracy | • | • | • | |
| Interval Readings | 10, 30, 60 seconds, 10, 30 minutes or Off | • | • | • | |
| Calibration Due Alarm | 1 to 31 days or Off | • | • | • | |
| Memory | Stores up to 1000 data sets | • | • | • | |
| Output | USB communication interface | • | • | • | |
| Display | 7 inch TFT LCD | • | • | • | |
| Power Requirements | DC12V/2A power adapter | • | • | • | |
| Dimensions and Weight | 240(L)×220(W)×80(H)mm, 1.7kg | • | • | • |
| Model | A120 | A130 | A131 | ||
|---|---|---|---|---|---|
| pH | Measuring Range | -2.000 - 20.000pH | • | • | -- |
| Accuracy | ±0.002pH | • | • | -- | |
| Resolution | 0.001, 0.01pH | • | • | -- | |
| Calibration Points | 1 - 5 points | • | • | -- | |
| pH Buffer Options | USA, NIST, DIN or Custom | • | • | -- | |
| mV | Measuring Range | ±2000mV | • | • | -- |
| Accuracy | ±0.2mV | • | • | -- | |
| Resolution | 0.1mV | • | • | -- | |
| Calibration Points | 1 point, only for relative mV mode | • | • | -- | |
| Measurement Modes | Relative and Absolute mV | • | • | -- | |
| Ion | Measuring Range | 0.001 - 30000, depending on the range of ion selective electrode | -- | • | • |
| Measurement Units | ppm, mg/L, mol/L, mmol/L | -- | • | • | |
| Accuracy | ±0.5% F.S (Monovalent), ±1% F.S (Divalent) | -- | • | • | |
| Resolution | 0.001, 0.01, 0.1, 1 | -- | • | • | |
| Calibration Points | 2 - 5 points | -- | • | • | |
| Calibration Solutions | 0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000ppm, mg/L, mol/L, mmol/L | -- | • | • | |
| Measurement Methods | Direct reading, known addition, known subtraction, sample addition, sample subtraction | -- | • | • | |
| Water Hardness | Measuring Range | 0.05 - 2000mmol/L, 0 - 1120°fH, 0 - 1404°e, 0 - 2000°TH, 0 - 8000mg/L (Ca²⁺) | -- | • | • |
| Accuracy | ±1% F.S | -- | • | • | |
| Resolution | 0.001, 0.01, 0.1, 1 | -- | • | • | |
| Calibration Points | 2 - 5 points | -- | • | • | |
| Calibration Solutions | 0.01, 0.1, 1, 10, 100mmol/L | -- | • | • | |
| Temperature | Measuring Range | 0 - 105°C, 32 - 221°F | • | • | • |
| Accuracy | ±0.5°C, ±0.9°F | • | • | • | |
| Resolution | 0.1°C, 0.1°F | • | • | • | |
| Calibration Points | 1 point | • | • | • | |
| Temperature Compensation | 0 - 100°C, 32 - 212°F, Manual or Automatic | • | • | • | |
| General | Data Hold | Manual or Auto - Endpoint | • | • | • |
| Stability Criteria | Standard or High - accuracy | • | • | • | |
| Interval Readings | 10, 30, 60 seconds, 10, 30 minutes or Off | • | • | • | |
| Calibration Due Alarm | 1 to 31 days or Off | • | • | • | |
| Memory | Stores up to 1000 data sets | • | • | • | |
| Output | USB communication interface | • | • | • | |
| Display | 7 inch TFT LCD | • | • | • | |
| Power Requirements | DC12V/2A power adapter | • | • | • | |
| Dimensions and Weight | 240(L)×220(W)×80(H)mm, 1.7kg | • | • | • |
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