Water Activity Meter with sensor LWAM-A10

Water Activity Meter with Sensor LWAM-A10 is a single-point measurement unit with 0 to 0.980 aw of water activity (no condensing) measuring range and ± 0.015 aw measurement accuracy. The temperature range is from 0 to 50°C and offers ± 0.5°C measurement accuracy. Designed with high brightness LCD display and high precision sensor. To measure water activity of food items, and to study, the reaction of food stability and the possibility of microbial proliferation, and changes in food quality to measure the ability of microorganisms to endure dryness.

Measuring range Water activity 0 to 0.980 aw (no condensing )
Temperature range 0 to 50°C
Measurement accuracy ± 0.015 aw
Temperature accuracy ± 0.5°C
Repeatability ≤ 0.015 aw
Temperature coefficient ≤ 0.0005/°C
Measurement points 1
Print method Measurement of the end of print Real-time print
Display Large screen LCD
Output mode Micro printer
Relative Humidity 0 to 95 % RH
Dimension 320 × 120 × 340 mm
Packaging dimension 540 × 420 × 240 mm
Power consumption ≤15 W
Power supply 220 V AC± 10 %
Weight 11 kg
  • Designed with single-point measurement, adopts high precision sensor
  • Offers quick calibration and measurement
  • Adopts high brightness LCD display
  • Reasonable structure design provides easier operation
  • It ensures stable and reliable performance
  • Offers long life, high accuracy, solid, liquid, powder are measurable
  • Equipped with printer, convenient to record data

Water Activity Meter with sensor is used to reflect the amount of free water in food under balance state, the stability of food and the possibility of microbial reproduction in food, changes in chemical, enzyme and physical state that can cause the change of food quality. Also used to limit preservatives, to determine the food, grain, fruit and vegetable shelf life.

Range 0 to 1.0 aw
Resolution 0 to 1.0 aw
Accuracy ± 0.02 aw
Sensor Nonconductive humidity sensor

pH Meters (Portable)

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 16.00 pH
pH accuracy ± 0.01 pH
pH resolution 0.01 pH
Calibration points 2 points
pH range (-2.00) to 20.00 pH
pH accuracy ± 0.002 pH
pH resolution 0.1, 0.01, 0.001 pH
Calibration points 1 - 5 points

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.

Ion measurement range Cl range: 5 × 10<sup>6</sup> - 1 M, 1.8 - 35500 ppm
Ion measurement accuracy ± 0.5 % F.S.
Resolution 0.001, 0.01, 0.1, 1
Calibration points 2 to 5 points
Ion measurement range Na range: 1 × 10<sup>5</sup> - 1 M, 0.1 - 23000 ppm
Ion measurement accuracy ± 0.5 % F.S.
Resolution 0.001, 0.01, 0.1, 1
Calibration points 2 to 5 points
Ion measurement range F range: 1 × 10<sup>6</sup>M – saturation, 0.02 ppm to saturation
Ion measurement accuracy ± 0.5 % F.S.
Resolution 0.001, 0.01, 0.1, 1
Calibration points 2 to 5 points
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
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 Mode
Conductivity Range 0.01 to 20.00, 200.0, 2000 µS/cm, 20.00, 200.0 mS/cm
Conductivity Accuracy ± 0.5% F.S.
Conductivity Resolution 0.01/0.1/1
Conductivity Calibration Points 1 to 5 Points
Conductivity Solutions 10, 84, 1413 µS/cm, 12.88, 111.8 mS/ cm
Conductivity Temperature coefficient 0.0 to 10.0 %/°C
Compensation mode Linear or Pure Water
Cell Constant K=0.1, 1, 10 or Custom
Reference temperature 20 or 25°C
TDS Mode
TDS Range 0 to 10.00, 100.0, 1000 ppm, 10.00, 100 ppt (Max. 200 ppt)
TDS Accuracy ± 1 % F.S.
TDS Factor 0.1  to 1.0 (default 0.5)
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
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 Mode
Conductivity Range 0.01 to 20.00, 200.0, 2000 µS/cm, 20.00, 200.0 mS/cm
Conductivity Accuracy ± 0.5% F.S.
Conductivity Resolution 0.01/0.1/1
Conductivity Calibration Points 1 to 5 Points
Conductivity Solutions 10, 84, 1413 µS/cm, 12.88, 111.8 mS/ cm
Conductivity Temperature coefficient 0.0 to 10.0 %/°C
Compensation mode Linear or Pure Water
Cell Constant K=0.1, 1, 10 or Custom
Reference temperature 20 or 25°C
Dissolved Oxygen Mode
Dissolved Oxygen Range 0.00 to 20.00 mg/ L
Dissolved Oxygen Accuracy ± 0.2 mg/ L
Dissolved Oxygen Resolution 0.1/ 0.01 mg/ L, selectable
Dissolved Oxygen Calibration Points 1 or 2 Points
% Saturation Range 0.0 to 200.0 % with ± 2 % accuracy
Pressure correction 60 to 112.5 kPa, 450 to 850 mmHg
Salinity correction 0 to 50 g/ L
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
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 Mode
Conductivity Range 0.01 to 20.00, 200.0, 2000 µS/cm, 20.00, 200.0 mS/cm
Conductivity Accuracy ± 0.5% F.S.
Conductivity Resolution 0.01/0.1/1
Conductivity Calibration Points 1 to 5 Points
Conductivity Solutions 10, 84, 1413 µS/cm, 12.88, 111.8 mS/ cm
Conductivity Temperature coefficient 0.0 to 10.0 %/°C
Compensation mode Linear or Pure Water
Cell Constant K=0.1, 1, 10 or Custom
Reference temperature 20 or 25°C
TDS Mode
TDS Range 0 to 10.00, 100.0, 1000 ppm, 10.00, 100 ppt (Max. 200 ppt)
TDS Accuracy ± 1 % F.S.
TDS Factor 0.1  to 1.0 (default 0.5)
Measuring range (NTU) 0 to 200
Minimum readout value (NTU) 0.1
Calibration point Nil
Sample volume 5 to 10 ml
Measuring range (NTU) 0 to 100, 0 to 200
Minimum readout value (NTU) 0.01, 0.1
Calibration point 4
Sample volume 5 to 10 ml
Light source LED/860 nm (Wavelength)
Readings display LCD
Unit switches NTU, FTU, EBC, ASBC
Measurement range 0.00-20.0; 20.01-200; 200.01-1000 NTU

Portable Water Hardness Meters

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.

Water hardness range 0.05 mmol / L - 0.2 mol / L<br/> (CaCO<sub>3</sub>) 0 - 19999 mg / L, (CaO) 0 - 11220 mg / L, (boiler) 0 - 400 mmol / L, (Ca) 0 - 8020 mg / L<br/> (German degree) 0 - 1122 °dH, (English degree) 0 - 1404 °e, (French degree) 0 - 2000 °f
Accuracy ± 1 % F.S.
Calibration points 2 to 5 points
Calibration solution 0.001, 0.01, 0.1 mmol / L, 0.001, 0.01, 0.1 mol / L