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LAQUAtwin Compact Water Quality Meter

Article No. 10869

Conductivity Meter w Cell and Standards

The LAQUAtwins are compact water quality meters that can read pH, conductivity, ions and salinity. They can accurately display readings from only a single drop, in a few seconds. They can be calibrated, measure at the touch of a button and are fully waterproof and dustproof (IP67 rated).

Select your model

$394.00 excl. taxes & shipping cost

Features

  • Easy measurement for all users
  • IP67 rated waterproof and dustproof.
  • Sensor is easily replaceable
  • Strap hole allows you to attached strap or tag
  • Simple to use
  • Auto calibration made easy with one button, complete when mark stops flashing
  • Stability mark lights up when measurement is complete
  • Temperature alarm flashes when temp is out of range
  • Voltage measurment mode displays voltage
  • Measurement value flashes when the measurement calue is out of range
  • Measurement mark stops flashing when measurement is complete
  • Sensor guard protects sensor
  • Measurement Methods:
    • Drops -Drop a sample with a pipette, small volume as 0.1mL can be measured. Using sampling sheet B (optional), volumes down to 0.005 mL can be tested.
    • Immersion - When you're in the lab, you can test the sample in a beaker. Ensure the sensor guard sliding cap is open.
    • Scoop - Use as a scoop to test water e.g. from a river. Vertical scoop from a aquarium is also available with unique sensor guard.
    • Wipe - The sampling sheet allows tiny trace volumes to be analyzed. For example, wipe off the surface of the skin with a sampling sheet soaked with pure water and measure.
    • Solid Samples - Foods containing some moisture can be tested by placing a small piece directly onto the sensor.
    • Powders - LAQUAtwin meters can also test dry powders. Simply place the powder sample onto the sensor and drop on a constant amount of pure water.
    • Paper, textiles and films - To test sheets of paper and textiles, cut up the sample into small pieces and place directly onto the sensor. Drop on a constant amount of pure water.

Technical Attributes

  • Data
    Type:pH>Conductivity (EC)>Salt 11 EC>Sodium Ion
    (NA+)>
    Calcium Ion
    (Ca2+)>
    Model:>pH-22B-771B-721ECB-722B-751
    Measurement Principle:>Glass electrode method2 AC bipolar2 AC bipolarIon electrode method
    Min Sample Volume:>0.05 mL*2 or 0.1 mL more*20.12 mL or more0.12 mL0.05 mL *2, 0.3 mL or more
    Measurement Range:>2 to 12 pHConductivity:
    0 to 19.9mS/cm
    (0 to 1.99S/m)
    Salt: 0 to 1.1%
    TDS: 0to 9900 ppm
    0.0 - 100.0 g/L salinity 0.00 to 10.00%23 to 2300 ppm (mg/L) (10-3 to 10-1 mol/L)40 to 4000 ppm (mg/L) (10-3 to 10-1 mol/L)
    Calibration:>Three-pointTwo-point
    Accuracy*6:>±0.1 pH±2%F.S. ±1 digit (for each range)*7±10% of reading value±20% of reading value
    Functions:>Temp compensation - Auto hold - IP67 Water/Dust proof *8Salt/TDS Measurement - Temp conversion (2%/°C fixed) - Auto hold - IP67 Water/Dust proof *8Auto stable Automatic Power Off (30 min)Temp Compensation - Auto hold - IP67 Water/Dust proof *8Temp Compensation - Auto hold - IP67 Water/Dust proof *8
    Operating Temp/Humidity:>5 to 40°C, 85% or less in relative humidity (no condensation)
    Power:>CR2032 batteries (x2)
    Dims/Mass:>164 mm x 29 mm x 20 mm (excluding projections) / Approx. 50g (meter only without batteries, B771 approx 45 g) 6.5" x 1.1" x 0.8"
    • *1 Special application packages for crop measurement (B-741) and soil measurement (B-742) are also available
    • *2 Smaller amount (0.05 mL or more) can be measured with the sampling sheet B. (Please close the light shield cover. If a sample that contain particulate, please use "Sampling sheet holder" (sold Separately))
    • *3 With soil/water sampling ratio of 1:5.
    • *4 When the measured value is out of the measurement range, the displayed value blinks. It should be used only as a guide
    • *6 Repeatability in measurement of a standard solution after calibration using it.
    • *7 -±5 µS/cm (0 to 199 µS/cm) -±0.05 mS/cm (0.20 to 1.99 mS/cm) - ±5 mS/cm (20 to 199 mS/cm)
    • *8 IP67: no failure when immersed in water at a depth of 1 meter for 30 minutes. But the product can not be used underwater.

Delivery Content

12873 - pH Meter (pH-22) - Meter, electrode, 14mL 7 Buffer, 14mL 4 Buffer, case

10869 - Conductivity Meter (B-771) - Meter, electrode, 14mL 1.41mS/cm standard, case

15014 - Salt 11 EC Meter B-721EC - Meter, electrode, 2 CR2032 batteries, 1 pipette, Instruction manual, Quick manual, 2 14mL Sodiumchloride Std. solutions, 14mL Conditioning solution, carry case

15098 - Sodium Ion Meter B-722 - Meter, electrode, 14mL 2000ppm, 14mL 150 ppm, case

15097 - Calcium Ion Meter B-751 - Meter, electrode, 14mL 2000ppm, 14mL 150 ppm, case

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