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Portable Multi-parameter Water Quality Meter LMPWM-A21

Portable Multi-parameter Water Quality Meter LMPWM-A21

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.

Portable Multi-parameter Water Quality Meter LMPWM-A21_1
Portable Multi-parameter Water Quality Meter LMPWM-A21_2
Portable Multi-parameter Water Quality Meter LMPWM-A21_3
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pH mode
pH measurement range(-2.000) to 20.000 pH
pH accuracy± 0.002 pH
pH calibration points1 - 5 points
pH calibration solutionsUSA, NIST, DIN or user defined
ORP measurement
ORP measurement range-1999.9 to 1999.9 mV
ORP accuracy±0.2 mV
ORP calibration points1 point
ORP calibration solutionsmV & relative mV
Dissolved oxygen
DO concentration range0.00 to 20.00 mg/L
DO accuracy± 0.2 mg/L
Calibration points1 - 2 points
Pressure correction60.0 to 112.5 kPa, 450 - 850 mmHg
Salinity correction0 to 50 g/L
% Saturation of Oxygen0.0 to 200.0 %
Accuracy± 2.0 %
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
  • Common Features Calibration due reminder informs operator to calibrate the meter regularly
  • Stability indicator displays the status of current measurement
  • Auto hold function freezes stable, final readings for better viewing and recording
  • Manual temperature calibration to rectify the deviations in temperature
  • Automatic temperature compensation for accurate measured value over the entire range
  • Selectable temperature units (°C or °F) for different application requirements
  • Expanded memory stores and recalls up to 500 readings
  • Help message as an operational guide, helps users for quick access to the parameters
  • Reset function automatically resumes all the setting back to factory default options
  • Store data is transferrable into computer via USB communication interface
  • pH mode 1-5 points push button calibration to automatically identify pH buffer
  • Convenient to select pH buffer standard (USA/NIST/DIN) or custom
  • Automatic electrode slope display helps operator whether to replace the sensor
  • ORP mode 1 point offset calibration to adjust the display value to known standard
  • Relative & absolute mV measurements for accurate ORP readings
  • Dissolved oxygen mode 1-2 points calibration using the air-sealed water & zero oxygen solution
  • Manual salinity & barometric pressure compensation for accurate readings

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.

pH electrodes
Dissolved oxygen electrode
Conductivity electrode
Temperature probe
pH and conductivity calibration solution
AA Batteries
Plastic Carrying case

Temperature probe
Dissolved oxygen electrode filling solutions 
Dissolved oxygen film cap
Dissolved oxygen electrode

Models of Portable Multi Parameter Water Quality Meter

Labtron Portable Multi Parameter Water Quality Meter offer precise water quality analysis with multi-parameter measurement capabilities. These meters measure pH, ORP, conductivity, TDS, dissolved oxygen, and absorbance with high accuracy. Their user-friendly interface ensures quick calibration and easy operation. They feature multiple calibration points for reliable results. These devices include automatic temperature compensation for accurate readings. Our multi-parameter water quality meters provide dependable performance for diverse water analysis applications.

Portable Multi Parameter Water Quality Meter LMPWM-D10

Portable Multi Parameter Water Quality Meter LMPWM-D10

  • pH Electrode Type : Triple compound pH electrode
  • pH Measurement Principle : Glass electrode method
  • pH Measuring Range : 0 to 14
  • pH Accuracy : ≤ ±0.05 pH
Portable Multi-parameter Water Quality Meter LMPWM-E11

Portable Multi-parameter Water Quality Meter LMPWM-E11

  • pH Measuring Range : -2.00 to 19.99 pH
  • pH Resolution : 0.1/0.01 pH
  • pH Accuracy : Meter: ± 0.01 pH; Overall: ± 0.02 pH
  • pH Input Impedance : At least 1 × 1012 Ω
Portable Multi-parameter Water Quality Meter LMPWM-C10

Portable Multi-parameter Water Quality Meter LMPWM-C10

  • pH Range : -2.000 to 20.000 pH
  • pH Resolution : 0.1, 0.01, 0.001 pH
  • pH Accuracy : ± 0.002 pH
  • pH Calibration Points : Up to 8
Portable Multi-parameter Water Quality Meter LMPWM-A11
Portable Multi-parameter Water Quality Meter LMPWM-A11
  • pH mode : pH measurement range (-2.000) to 20.000 pH pH accuracy ± 0.002 pH pH calibration points 1 to 5 points pH calibration solutions USA, NIST, DIN or user defined
  • ORP measurement : ORP measurement range -1999.9 to 1999.9 mV ORP accuracy ±0.2 mV ORP calibration points 1 point ORP calibration solutions mV & relative mV
  • Conductivity measurement : Conductivity measurement range 0 to 20.00, 200.0, 2000 µS / cm, 20.00, 200.2 mS / cm Conductivity accuracy ± 0.5 % F.S. Conductivity calibration points 1 to 5 points Conductivity calibration solutions 10 µS / cm, 84 µS / cm, 1413 µS / cm, 12.88mS / cm, 111.8mS / cm Temperature coefficient 0.0 to 10.0 % / °C Compensation modes Linear or pre water Cell constant K = 0.1, 1, 10 or user-defined Normalization temperature 20 °C or 25 °C
  • TDS measurement : TDS range 0 to 100 ppt. (max. 200 ppt., depending on factor setting) TDS accuracy ± 1 % F.S. TDS factor 0.1 - 1.0 (default 0.5)
Portable Multi-parameter Water Quality Meter LMPWM-E10
Portable Multi-parameter Water Quality Meter LMPWM-E10
  • pH Measuring Range : -2.00 to 19.99 pH
  • pH Resolution : 0.1/0.01 pH
  • pH Accuracy : Meter: ± 0.01 pH; Overall: ± 0.02 pH
  • pH Input Impedance : At least 1 × 1012 Ω
Portable Multi-parameter Water Quality Meter LMPWM-A10

Portable Multi-parameter Water Quality Meter LMPWM-A10

  • pH Measurement Range : (-2.000) to 20.000 pH
  • pH Accuracy : ± 0.002 pH
  • pH Calibration Points : 1 - 5 points
  • pH Calibration Solutions : USA, NIST, DIN or user defined
Portable Multi-parameter Water Quality Meter LMPWM-A20

Portable Multi-parameter Water Quality Meter LMPWM-A20

  • pH mode : pH measurement range(-2.000) to 20.000 pHpH accuracy± 0.002 pHpH calibration points1 - 5 pointspH calibration solutionsUSA, NIST, DIN or user defined
  • ORP measurement : ORP measurement range-1999.9 to 1999.9 mVORP accuracy±0.2 mVORP calibration points1 pointORP calibration solutionsmV & relative mV
  • Conductivity measurement : Conductivity measurement range0 - 20.00, 200.0, 2000 µS / cm, 20.00, 200.2 mS / cmConductivity accuracy± 0.5 % F.S.Conductivity calibration points1 - 5 pointsConductivity calibration solutions10 µS / cm, 84 µS / cm, 1413 µS / cm, 12.88mS / cm, 111.8mS / cmTemperature coefficient0.0 to 10.0 % / °CCompensation modesLinear or pre waterCell constantK = 0.1, 1, 10 or user-definedNormalization temperature20 °C or 25 °C
  • TDS measurement : TDS range0-100 ppt. (max. 200 ppt., depending on factor setting)TDS accuracy± 1 % F.S.TDS factor0.1 - 1.0 (default 0.5)
Portable Multi-parameter Water Quality Meter LMPWM-E12

Portable Multi-parameter Water Quality Meter LMPWM-E12

  • Conductivity Measuring Range : 0.00 to 19.99 μS/cm20.0 to 199.9 μS/cm200 to 1999 S/cm2.00 to 19.99 mS/cm20.0 to 199.9 mS/cmTDS: 0 to 100 g/LSalinity: 0 to 100 pptResistivity: 0 to 100 MΩ∙cm
  • Conductivity Resolution : 0.01/0.1/1μS/cm; 0.01/0.1 mS/cm
  • Conductivity Accuracy : ± 1.0% F S, Overall: ± 1.5% F S
  • Conductivity Temperature Compensation : 0 to 100℃ (Auto/manual)

Portable Multi-parameter Water Quality Meter LMPWM-A21 FAQ's
  • Yes, Labtron Portable Multi-parameter Water Quality Meter is ideal for measuring dissolved oxygen (DO) in natural or controlled aquatic environments. It can assess water quality effectively for fish farms, lakes, and research studies with a wide DO concentration range (0.00–20.00 mg/L) and % saturation measurement up to 200%. Salinity and pressure compensation features enhance accuracy in varying conditions. The meter's portability makes it perfect for fieldwork in remote aquatic areas.

  • The Portable Multi-parameter Water Quality Meter includes manual salinity & barometric pressure compensation which are crucial when testing at different altitudes or in saltwater environments. These compensation settings help eliminate potential measurement errors caused by environmental factors. These features along with automatic temperature compensation ensure precise results even in challenging conditions. Users should always calibrate using known standards before field use for best results.

  • Yes, Our Portable Multi-parameter Water Quality Meter is designed with multiple functions for beginners. It features an intuitive LCD display, push-button calibration, and an auto-hold function that captures stable readings for easier viewing. Help messages guide users through operations, making it accessible even to those new to water quality analysis. The reset function also allows quick recovery to factory settings in case of user error.

  • Labtron's Portable Multi-parameter Water Quality Meter can store up to 500 sets of readings in its internal memory, allowing for reliable data logging during extended fieldwork. It supports USB data transfer, making it easy to export results to a computer for analysis, reporting, or archiving. This feature is particularly valuable in regulatory environments or research where traceability and documentation are important. The memory recall function also aids in reviewing data directly on the device.

  • Absolutely. The Portable Multi-parameter Water Quality Meter features temperature compensation from 0 to 100 °C (32 to 212 °F), either manually or automatically. This ensures accurate readings regardless of the environmental temperature. The meter adapts to varying conditions whether testing in freezing mountain lakes or warm coastal waters. The selectable °C or °F display adds convenience for users in different regions.

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Portable Multi Parameter Water Quality Meter:
Portable Multi Parameter Water Quality Meter LMPWM-D10, Portable Multi-parameter Water Quality Meter LMPWM-E11, Portable Multi-parameter Water Quality Meter LMPWM-C10, Portable Multi-parameter Water Quality Meter LMPWM-A11, Portable Multi-parameter Water Quality Meter LMPWM-E10, Portable Multi-parameter Water Quality Meter LMPWM-A10, Portable Multi-parameter Water Quality Meter LMPWM-A20, Portable Multi-parameter Water Quality Meter LMPWM-E12, and more.

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Email: info@labtron.com Whatsapp: +44 20 8004 3587 Phone: +44 2080 043608

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