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Benchtop Multi-parameter Water Quality Meter LMPWM-A40

Benchtop Multi-parameter Water Quality Meter LMPWM-A40 with 7 inch TFT display measures pH, mV, relative mV, water hardness, and temperature and Ion concentration of the sample. With expanded memory, it stores and recalls up to 1000 readings. Calibration due reminder informs operator to calibrate the meter regularly.

Benchtop Multi-parameter Water Quality Meter LMPWM-A40

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 Range ± 2000 mV
mV Accuracy ± 0.2 mV
mV Resolution 0.1 mV, selectable
mV Calibration Points 1 Point, only for relative mode
mV Mode
Ion Mode
Ion measurement range 0.01 to 30000 ppm, mg/l, mol/l, mmol/l (refer Range of ion selection)
Ion measurement accuracy ±0.5% F.S (Monovalent), ±1% F.S (Divalent)
Ion measurement resolution 0.001/0.01/0.1/1
Ion measurement calibration points 2 to 5 points
Ion measurement calibration solutions 0.001/0.01/0.1/1/10/100/1000/10000 ppm, mg/L, mol/L
Ion measurement methods Direct reading, Known addition, Known subtraction, Sample addition, Sample subtraction
Water Hardness Mode
Water hardness measurement range 0.05-200mmol/L, 0-1120°dH, 0-1404°e, 0-2000°fH, 0-8000mg/L (Ca2+), 0~19999mg/L (CaCO3)
Water hardness measurement accuracy ±1% F.S
Water hardness measurement resolution 0.001/0.01/0.1/1
Water hardness calibration points 2 to 5 points
Water hardness calibration solutions 0.01/0.1/1/10/100 mmol/L
Temperature Mode
Temperature measurement range 0 to 105°, 32 to 212°F
Temperature measurement accuracy ± 0.5°C, ± 0.9°F
Temperature measurement resolution 0.1°C, 0.1°F
Temperature measurement calibration points 1 point
Conductivity Mode
TDS Mode
Salinity Mode
Resistivity Mode
Dissolved Oxygen Mode
Temperature Range 0 to 100°C, 32 to 221°F
Temperature Accuracy
Temperature Resolution
Temperature Calibrations Points
Temperature Compensation Mode Manual or Automatic
Data Hold Function Manual or Automatic end point detection
Stability Criteria Standard or high accuracy
Calibration Due Alarm 1 to 31 days
Reset Function Yes
Memory Stores up to 1000 sets data
Output USB communication interface
Connector BNC Connector
Display 7 inch TFT LCD display
Power supply DC 12 V, AC adapter, AC 220 V, 50 Hz
Dimension (L × W × H) 240 × 220 × 80 mm
Weight 1.7 kg

  • Common features Auto read feature to lock and read endpoint measurement
    Stability indicator to record stable measurement reading
    Reset feature automatically sets all function to default condition
    Automatic interval readings, sends the measurement data to the computer/printer
    USB communication interface to transfer store data
    pH features 1-5 points push button calibration to automatically identify pH buffer
    Convenient to select pH buffer standard (USA/NIST/DIN) or custom calibration solutions
    Automatic temperature compensation, provides accurate readings over entire pH range
    Automatic electrode diagnosis with pH slope, offset display
    Alarm when pH readings are out of range
    ORP features 1 point offset calibration, can adjust display value to known standard
    Relative and absolute millivolt mode of measurement
    Water Hardness features 2 to 5 points calibration with high to low concentration
    Advanced measurements using different measurement units
    Ion features 2 to 5 2 to 5 points calibration, when 8 concentration points are selected
    Different concentration units like ppm, mg/l, mol/l, mmol/l for selection
    Automatic recognition of ion selective electrode
    Different Ion measurement methods for selection
    Calibration report with details of calibration standard and slope

Used in multi-parameters based research testing , and quality analysis of water, other general liquids across water plants, food and beverages production units, laboratories, and institutes.

pH Meter (Benchtop)

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.

Benchtop Conductivity Meter

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.

Benchtop Dissolved Oxygen Meter

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.

Benchtop Ion Meter

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.

Benchtop Water Hardness Meter

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 Tester

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.

Dissolved Oxygen Tester

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.

ORP Tester

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 Tester

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 Tester

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.

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