Precision laboratory Ion Meter, 7-inch TFT display screen, 5 ion measurement methods are optional, the system menu contains 13 optional parameters, the instrument is suitable for measuring the ion concentration of liquid and water hardness value.
• Precision laboratory Ion Meter with 7-inch TFT display.
• Optional ion measurement methods, including direct reading method, known addition method, known subtraction method, sample addition method and sample subtraction method.
• Optional concentration units, including ppm, mg/L, mol/L, mmol/L.
• 2 to 5-point key calibration, including 8 optional concentration calibration points.
• Automatic identification of ion-selective electrodes without specifying ion types.
• Electrode management can store the slope of 3 ion electrodes and recall the calibration data of each electrode.
• Calibration report provides calibration standards and electrode slope details.

laboratory Ion Meter
• 2 to 5 point key calibration from low to high concentration.
• Optional water hardness units, including German degrees, British degrees, French degrees, mmol/L and mg/L.
• Calibration due reminder to remind users to calibrate the meter regularly.
• Automatic end point locking, retaining stable measurement values for easy viewing and recording.
• Interval reading mode, regularly send measured values to PC or printer.
• Password protection to prevent unauthorized calibration and settings.
• Expanded memory can store up to 1000 sets of data.
• USB communication interface is easy to connect external devices.
• One key reset (Reset) automatically restores the instrument to the factory default settings.
| model | parameter | describe |
| A131-NH4 | Ammonium | Measuring range: 5×10-6 ~1M, Accuracy: ±0.5% FS |
| A131-Br | bromine | Measuring range: 5×10-6 ~1M, Accuracy: ±0.5% FS |
| A131-Ca | calcium | Measuring range: 5×10-7 ~1M, Accuracy: ±1% FS |
| A131-CL | chlorine | Measuring range: 5×10-6 ~1M, Accuracy: ±0.5% FS |
| A131-Cn | Cyanide | Measuring range: 5×10-6 ~0.01M, Accuracy: ±1% FS |
| A131-F | fluorine | Measuring range: 1×10-6 M~saturation, accuracy: ±0.5% FS |
| A131-NO3 | Nitrate | Measuring range: 7×10-6 ~1M, Accuracy: ±0.5% FS |
| A131-Ag | silver | Measuring range: 1×10-7 ~1M, Accuracy: ±1% FS |
| A131-Na | sodium | Measuring range: 1×10-5 ~1M, Accuracy: ±0.5% FS |
| A131-Cd | cadmium | Measuring range: 1×10-6 ~0.1M, Accuracy: ±1% FS |
| A131-Cu | copper | Measuring range: 1×10-8 ~0.1M, Accuracy: ±1% FS |
| A131-I | iodine | Measuring range: 5×10-8 ~1M, Accuracy: ±1% FS |
| A131-Pb | lead | Measuring range: 1×10-8 ~0.1M, Accuracy: ±1% FS |
| A131-K | Potassium | Measuring range: 1×10-6 ~1M, Accuracy: ±1% FS |
| A131-S | sulfur | Measuring range: 1×10-7 ~1M, Accuracy: ±1% FS |
| A131-NH3 | ammonia | Measuring range: 1×10-6 ~1M, Accuracy: ±1% FS |
| A131-WH | water hardness | Measuring range: 0.05~200mmol/L, accuracy: ±1% FS |