Portable Multi-parameter Water Quality Meter LMPWM-A21 is adapted with different modes for measuring quality of water on different parameters. This meter can measure pH, ORP, Dissolved Oxygen content from test sample. It can store & recalls up to 500 sets of data. It is reliable and user friendly, suitable for outdoor measurements.
Get Catalog| pH mode |
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| ORP measurement |
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| Dissolved oxygen |
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| Temperature compensation | 0 to 100 °C, 32 to 212 °F, Manual or Automatic | ||||||||||||||
| Stability conditions | Low or high | ||||||||||||||
| Calibration due | 0 to 31 days | ||||||||||||||
| Memory | Stores up to 500 data sets | ||||||||||||||
| Output | USB communication interface | ||||||||||||||
| Connector | BNC, 6- pin MINI connector | ||||||||||||||
| Display | LCD | ||||||||||||||
| Dimension (L × W × H) | 170×85×30 mm | ||||||||||||||
| Weight | 300 g | ||||||||||||||
| Power supply | 3 × 1.5 V “AA batteries or DC 5 V power adapter |
The portable multi-parameter water quality meter is used for quality testing of water, and other solvents on different testing parameters in research and development labs, water resources and plants in nearby or remote area.
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Labtron benchtop meters are easy to use. The LCD display, manual or automatic mode of calibration, universal connector and other features are included in this range to produce accurate, reliable results. It consist of benchtop meter for measuring pH, conductivity, dissolved oxygen content, Ion concentration, water hardness level. These meters are suitable for simple to complex applications in water quality testing, research and analysis etc.
| Temperature compensation | 0 to 100°C, 32°F to 212°F Manual or Automatic |
| Hold function | Manual or automatic endpoint detection |
| Stability criteria | Standard or High-accuracy |
| pH measurement range | 0.00 to 14.00 pH |
| pH accuracy | ± 0.01 pH |
| pH resolution | 0.01 pH |
| pH measurement range | -1.00 to 15.00 pH |
| pH accuracy | ± 0.01 pH |
| pH resolution | 0.01 pH |
Labtron benchtop meters are easy to use. The LCD display, manual or automatic mode of calibration, universal connector and other features are included in this range to produce accurate, reliable results. It consist of benchtop meter for measuring pH, conductivity, dissolved oxygen content, Ion concentration, water hardness level. These meters are suitable for simple to complex applications in water quality testing, research and analysis etc.
| Conductivity measurement range | 0 - 20.0, 200.0, 2000 µS / cm, 200.0 mS / cm |
| Conductivity accuracy | ± 1 % F.S. |
| Conductivity resolution | 0.01, 0.1, 1 |
| Conductivity measurement range | 0.000 μS/cm to 3000mS/cm |
| Resistivity measurement range | 5.00 Ω·cm to 100.0 MΩ·cm |
| TDS measurement range | 0.000 mg/L to 1000g/L |
| Conductivity Mode | 0.01-20.0, 200.0, 2000 µS/cm, 20.00, 200.0 mS/cm, ±1% F.S., 0.001, 0.01, 0.1, 1, 1 to 3 points, 10 µS/cm , 84 µS/cm, 1413 µS/cm, 12.88 mS/cm, 111.8 mS/cm |
| TDS Mode | 0 to 10.00, 100.0, 1000 ppm, 10.00, 100 ppt (Max. 200 ppt), ± 1 % F.S., 0.01 to 1.00 (default 0.5), 3 points |
| Temperature Mode | 0 to 105°C, 32 to 221°F, ±1°C, 0.1°C, 0.1°F, 1 point, Manual or Automatic, 0 to 100°C , 32 to 212°F, 0.0 to 10.0 % per °C |
Labtron benchtop meters are easy to use. The LCD display, manual or automatic mode of calibration, universal connector and other features are included in this range to produce accurate, reliable results. It consist of benchtop meter for measuring pH, conductivity, dissolved oxygen content, Ion concentration, water hardness level. These meters are suitable for simple to complex applications in water quality testing, research and analysis etc.
| Dissolved oxygen range | 0.0 to 20.0 mg / L (or ppm) |
| Dissolved oxygen accuracy | ± 0.5 mg / L |
| Resolution | 0.1 mg / L |
| Dissolved oxygen range | 0.0 to 20.0 mg / L (or ppm) |
| Dissolved oxygen accuracy | ± 0.2 mg / L |
| Resolution | 0.01 mg / L |
Labtron benchtop meters are easy to use. The LCD display, manual or automatic mode of calibration, universal connector and other features are included in this range to produce accurate, reliable results. It consist of benchtop meter for measuring pH, conductivity, dissolved oxygen content, Ion concentration, water hardness level. These meters are suitable for simple to complex applications in water quality testing, research and analysis etc.
| Ion measurement range | Cl range: 5 × 106 - 1 M, 1.8 - 35500 ppm |
| Ion measurement accuracy | ± 0.5 % F.S. |
| Resolution | 0.001, 0.01, 0.1, 1 |
| Ion measurement range | F range: 1 × 106M – saturation, 0.02 ppm to saturation |
| Ion measurement accuracy | ± 0.5 % F.S. |
| Resolution | 0.001, 0.01, 0.1, 1 |
| Ion measurement range | Na range: 1 × 105 - 1 M, 0.1 - 23000 ppm |
| Ion measurement accuracy | ± 0.5 % F.S. |
| Resolution | 0.001, 0.01, 0.1, 1 |
Labtron pocket testers are small and compact in size, gives fast and accurate results. The Pocket testers consist of pH, ORP, TDS, dissolved oxygen, salinity and conductivity tester for various laboratory as well as outdoor applications. Measurements can be taken by inserting the probe in to the test solution and after gentle stirring, stable readings can be noted down.
| Conductivity measurement range | 1.0 to 199.9 µS/cm |
| Type of conductivity | Low range conductivity |
| Conductivity accuracy | ± 1 % F.S. |
| Conductivity measurement range | 10 to 1999 µS/cm |
| Type of conductivity | Mid-range conductivity |
| Conductivity accuracy | ± 1 % F.S. |
| Conductivity measurement range | 0.1 to 19.99 mS/cm |
| Type of conductivity | High range conductivity |
| Conductivity accuracy | ± 1 % F.S. |
Labtron pocket testers are small and compact in size, gives fast and accurate results. The Pocket testers consist of pH, ORP, TDS, dissolved oxygen, salinity and conductivity tester for various laboratory as well as outdoor applications. Measurements can be taken by inserting the probe in to the test solution and after gentle stirring, stable readings can be noted down.
| Sensor type | Platinum sensor |
| Connector | 6 pin |
| ORP measurement range | (-999) to 999 mV |
Labtron pocket testers are small and compact in size, gives fast and accurate results. The Pocket testers consist of pH, ORP, TDS, dissolved oxygen, salinity and conductivity tester for various laboratory as well as outdoor applications. Measurements can be taken by inserting the probe in to the test solution and after gentle stirring, stable readings can be noted down.
| pH measurement range | 0.0 - 14.00 pH |
| Shape of electrode | Round glass pH electrode |
| pH measurement accuracy | ± 0.1 pH |
| pH measurement range | 0.0 - 14.00 pH |
| Shape of electrode | Flat pH electrode |
| pH measurement accuracy | ± 0.1 pH |
| pH measurement range | 0.0 - 14.00 pH |
| Shape of electrode | Long distance planar pH electrode |
| pH measurement accuracy | ± 0.1 pH |
Labtron pocket testers are small and compact in size, gives fast and accurate results. The Pocket testers consist of pH, ORP, TDS, dissolved oxygen, salinity and conductivity tester for various laboratory as well as outdoor applications. Measurements can be taken by inserting the probe in to the test solution and after gentle stirring, stable readings can be noted down.
| Salinity measurement range | 0.00 to 10.00 ppt |
| Salinity accuracy | ± 1 % F.S |
| Conductivity range | 0 - 20.00, 200.0, 2000 µS/cm, 20.00 mS/cm |
| Salinity measurement range | 0.00 to 80.00 ppt |
| Salinity accuracy | ± 1 % F.S |
| Conductivity range | 0 - 200.0 µS/cm, 100 - 2000 µS/cm, 20.00 mS/cm |
Labtron pocket testers are small and compact in size, gives fast and accurate results. The Pocket testers consist of pH, ORP, TDS, dissolved oxygen, salinity and conductivity tester for various laboratory as well as outdoor applications. Measurements can be taken by inserting the probe in to the test solution and after gentle stirring, stable readings can be noted down.
| TDS range | 0.5 - 100.0 ppm |
| TDS accuracy | ± 1 % F.S. |
| TDS factor | 0.4 to 1.0 (default 0.5) |
| TDS range | 5 - 1000 ppm |
| TDS accuracy | ± 1 % F.S. |
| TDS factor | 0.4 to 1.0 (default 0.5) |
| TDS range | 0.05 - 10.00 ppt |
| TDS accuracy | ± 1 % F.S. |
| TDS factor | 0.4 to 1.0 (default 0.5) |
Labtron portable meters are used in quality analysis of water and other solutions. With portability, waterproof features, finds applications in indoor as well as outdoor measurement of pH, ORP, dissolved oxygen, water hardness, salinity, TDS etc.
| Dissolved oxygen range | 0.0 to 20.0 mg / L (or ppm) |
| Dissolved oxygen accuracy | ± 0.5 mg / L |
| Resolution | 0.1 mg / L |
| Dissolved oxygen range | 0.0 - 20.0 mg / L (or ppm) |
| Dissolved oxygen accuracy | ± 0.2 mg / L |
| Resolution | 0.01 mg / L |
Labtron portable meters are used in quality analysis of water and other solutions. With portability, waterproof features, finds applications in indoor as well as outdoor measurement of pH, ORP, dissolved oxygen, water hardness, salinity, TDS etc.
| pH mode | (-2.000) to 20.000 pH, ± 0.002 pH, 1 - 5 points, USA, NIST, DIN or user defined |
| ORP measurement | -1999.9 to 1999.9 mV, ±0.2 mV, 1 point, mV & relative mV |
| Conductivity measurement | 0 - 20.00, 200.0, 2000 µS / cm, 20.00, 200.2 mS / cm, ± 0.5 % F.S., 1 - 5 points, 10 µS / cm, 84 µS / cm, 1413 µS / cm, 12.88mS / cm, 111.8mS / cm, 0.0 to 10.0 % / °C, Linear or pre water, K = 0.1, 1, 10 or user-defined, 20 °C or 25 °C |
| pH mode | (-2.000) to 20.000 pH, ± 0.002 pH, 1 - 5 points, USA, NIST, DIN or user defined |
| ORP measurement | -1999.9 to 1999.9 mV, ±0.2 mV, 1 point, mV & relative mV |
| Ion measurement | 0 to 19999 ppm, mg/L, mol/L, ± 0.5 % F.S. (monovalent), ± 1 % F.S. (divalent), 2 - 5 points, 0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000 ppm, mol/L, mg/L |
| pH mode | (-2.000) to 20.000 pH, ± 0.002 pH, 1 - 5 points, USA, NIST, DIN or user defined |
| ORP measurement | -1999.9 to 1999.9 mV, ±0.2 mV, 1 point, mV & relative mV |
| Ion measurement | , , , |
Labtron portable meters are used in quality analysis of water and other solutions. With portability, waterproof features, finds applications in indoor as well as outdoor measurement of pH, ORP, dissolved oxygen, water hardness, salinity, TDS etc.
| pH range | (-2.00) to 20.00 pH |
| pH accuracy | ± 0.002 pH |
| pH resolution | 0.1, 0.01, 0.001 pH |
| COD | 2 to 10000 mg/ L, COD < 50 mg/ L, ≤ ± 10 % and COD > 50 mg/ L, ≤ ± 5 %, 0.1 mg/ L, 20 minutes, ≤ ± 5 %, , Colorimetric tubes and Cuvette, 165 ± 0.5°C, 10 min, 3 pcs, (Cl) < 1000 mg/ L No effect |
| Ammonia nitrogen | 0.02 to 60 mg/ L, ≤ ± 10 %, 0.01 mg/ L, 10 to 15 minutes, ≤ ± 5 %, , Colorimetric tubes and Cuvette, 3 pcs |
| Total phosphorous | 0.002 to 20 mg/ L, ≤ ± 5 %, 0.001 mg/ L, 35 to 50 minutes, ≤ ± 5 %, , Colorimetric tubes and Cuvette, 120 ± 0.5°C, 30 min, 3 pcs |
| COD | 5 to 5000 mg/ L, COD < 50 mg/ L, ≤ ± 10 % and COD > 50 mg/ L, ≤ ± 5 %, 0.1 mg/ L, 20 minutes, ≤ ± 5 %, 12 pcs, Colorimetric tubes and Cuvette, 165 ± 0.5°C, 10 min, 3 pcs, (Cl) < 1000 mg/ L No effect |
| Ammonia nitrogen | 0.02 to 30 mg/ L, ≤ ± 10 %, 0.01 mg/ L, 10 to 15 minutes, ≤ ± 5 %, 20 pcs, Colorimetric tubes and Cuvette, 3 pcs |
| Total phosphorous | 0.002 to 10 mg/ L, ≤ ± 5 %, 0.001 mg/ L, 35 to 50 minutes, ≤ ± 5 %, 12 pcs, Colorimetric tubes and Cuvette, 120 ± 0.5°C, 30 min, 3 pcs |
| Light source | LED/860 nm (Wavelength) |
| Readings display | LCD |
| Unit switches | NTU, FTU, EBC, ASBC |
| Measuring range (NTU) | 0 to 200 |
| Minimum readout value (NTU) | 0.1 |
| Calibration point | Nil |
| Measuring range (NTU) | 0 to 100, 0 to 200 |
| Minimum readout value (NTU) | 0.01, 0.1 |
| Calibration point | 4 |
| pH Mode | pH range -2.00 to 20.00 pH pH Accuracy ± 0.002 pH pH Resolution 0.1/0.01/0.001 pH, selectable pH Calibration Points 1 to 5 Points pH Buffer Solutions USA (pH 4.0/7.00/10.01) or NIST (pH 4.01/6.86/9.18) or DIN buffers |
| ORP Mode | |
| mV Mode | mV Range -1999.9 to 1999.9 mV mV Accuracy ± 0.2 mV mV Resolution 0.1/1 mV, selectable mV Calibration Points 1 Point |
| pH Mode | pH range -2.00 to 20.00 pH pH Accuracy ± 0.002 pH pH Resolution 0.1/0.01/0.001 pH, selectable pH Calibration Points 1 to 5 Points pH Buffer Solutions USA (pH 4.0/7.00/10.01) or NIST (pH 4.01/6.86/9.18) or DIN buffers |
| ORP Mode | |
| mV Mode | mV Range -1999.9 to 1999.9 mV mV Accuracy ± 0.2 mV mV Resolution 0.1/1 mV, selectable mV Calibration Points 1 Point |
| pH Mode | pH range -2.00 to 20.00 pH pH Accuracy ± 0.002 pH pH Resolution 0.1/0.01/0.001 pH, selectable pH Calibration Points 1 to 5 Points pH Buffer Solutions USA (pH 4.0/7.00/10.01) or NIST (pH 4.01/6.86/9.18) or DIN buffers |
| ORP Mode | |
| mV Mode | mV Range -1999.9 to 1999.9 mV mV Accuracy ± 0.2 mV mV Resolution 0.1/1 mV, selectable mV Calibration Points 1 Point |
| Conductivity | 0.01 to 20.00, 200.0, 2000 µS/cm, 20.00, 200 mS/cm, ±0.5% F.S, 1 to 3 points, 10 µS/cm, 84 µS/cm, 1413 µS/cm, 12.88 mS/cm, 111.8 mS/cm or Custom, 0.001, 0.01, 0.1, 1 |
| Temperature | 0 105 °C, 32 to 221 °F, ± °0.5 C, ± 0.9 °F, 1 point, 0.1 °C, 0.1 °F |
| Temperature compensation | 0 to 100 °C, 32 to 212 ° F, Manual or Automatic |
| Conductivity | 0.01 to 20.00, 200.0, 2000 µS/cm, 20.00, 200 mS/cm, ±0.5% F.S, 1 to 5 points, 10 µS/cm, 84 µS/cm, 1413 µS/cm, 12.88 mS/cm, 111.8 mS/cm or Custom, 0.001, 0.01, 0.1, 1 |
| TDS | 0 10.00, 100.0, 1000 ppm, 10.00, 100 ppt (Max. 200 ppt), ±1 % F.S, 0.01 to 1.00 (Default 0.5), 0.01, 0.1, 1 |
| Temperature | 0 105 °C, 32 to 221 °F, ± °0.5 C, ± 0.9 °F, 1 point, 0.1 °C, 0.1 °F |
| Conductivity | 0.01 to 20.00, 200.0, 2000 µS/cm, 20.00, 200 mS/cm, ±0.5% F.S, 1 to 5 points, 10 µS/cm, 84 µS/cm, 1413 µS/cm, 12.88 mS/cm, 111.8 mS/cm or Custom, 0.001, 0.01, 0.1, 1 |
| Salinity | 0.00 to 80.00 ppt, 0.00 to 42.00 psu, ±1% F.S, Practical Salinity (psu) or Natural Seawater (ppt), 0.01, 0.1, 1 |
| Temperature | 0 105 °C, 32 to 221 °F, ± °0.5 C, ± 0.9 °F, 1 point, 0.1 °C, 0.1 °F |
| Measuring range | Water activity 0 to 0.980 aw (no condensing ) |
| Temperature range | 0 to 50°C |
| Measurement accuracy | ± 0.015 aw |
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