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Home  >>  Products  >>  pH & Conductivity  >>  LAQUAtwin
LAQUAtwin

Compact Water Quality Meter

  • Accurate reading from only a single drop, in a few seconds
  • pH, conductivity, ions and salinity
  • Calibrate and measure at the touch of a button - the Smiley face will tell you when the result can be read
  • LAQUAtwin is fully waterproof and dustproof (IP67 rated)
  • Carry case comes standard for handy portability

Meters



FEATURES TECHNICAL DATA MORE INFO VIDEO PRICE LIST
 

 

Features

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Technical Data
Description Model Packaging
pH Meter Meter; 3 point calibration, 0.01 Display, waterproof

Replacement electrode
pH-22

S010
Meter, electrode, 14mL 7 Buffer, 14mL 4 Buffer, case

Electrode
Conductivity Meter Meter; 2 point calibration, waterproof

Replacement electrode
B-771

S070
Meter, electrode, 14mL 1.41mS/cm standard, case

Electrode
Nitrate Meter
(also nitrate as N)
Meter; 2 point calibration, waterproof, 100-9900 ppm



Meter; 2 point calibration, waterproof, 30-600ppm



Meter; 2 point calibration, waterproof, 62-6200ppm

Replacement Electrode
B-741



B-742



B-743

S040
Meter, electrode, 14mL 5000ppm Std., 14mL 300ppm Std., case, (5) 1mL pipettes, cleaning bottle, sample press, 3 sample cups, 5 sampling sheets

Meter, electrode, 14mL 300ppm Std., 14mL 30ppm Std., case, (5) 1 mL pipettes, cleaning bottle, 3 extraction bottles, 2 spoons, filters, 2 filter holders, tweezers

Meter, electrode, 14mL 2000ppm, 14mL 150ppm, case

Electrode
Potassium Ion Meter Meter; 2 point calibration, waterproof

Replacement Electrode
B-731

S030
Meter, electrode, 14mL 2000ppm, 14mL 150ppm, case

Electrode
Sodium Ion Meter Meter; 2 point calibration, waterproof

Replacement Electrode
B-722

S022
Meter, electrode, 14mL 2000ppm, 14mL 150 ppm, case

Electrode
Salt (as NaCL) Meter Meter; 2 point calibration, waterproof

Replacement Electrode
B-721

S021
Meter, electrode, 1 pipette, 14mL 5.0%, 14mL 0.5%, case

Electrode
Salt 11 EC Meter Meter; 2 point calibration, waterproof



Replacement Electrode
B-721EC



HS071
Meter, electrode, 2 CR2032 batteries, 1 pipette, Instruction manual, Quick manual, 2 14mL Sodium chloride Std. solutions, 14mL Conditioning solution, carry case

Electrode
Calcium Ion Meter Meter; 2 point calibration, waterproof

Replacement Electrode
B-751

S050
Meter, electrode, 14mL 2000ppm, 14mL 150ppm, case

Electrode


pH Meter

 

Technical Data

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Technical Data
  pH Conductivity (EC) Nitrate Ion
(NO3-)
Potassium Ion (K+) Sodium Ion (NA+) Salt
(NaCl)
Salt 11 EC Calcium Ion (Ca2+)
Model: pH-22 B-771 B-743*1
(general use)
B-731 B-722 B-721 B-721EC B-751
Measurement Principle: Glass electrode method 2 AC bipolar Ion electrode method 2 AC bipolar Ion electrode method
Min Sample Volume: 0.05 mL*2 or 0.1 mL more*2 0.12 mL or more 0.05 mL *2, 0.3 mL or more 0.12 mL 0.05 mL *2, 0.3 mL or more
Measurement Range: 2 to 12 pH Conductivity:
0 to 19.9mS/cm
(0 to 1.99S/m)
Salt: 0 to 1.1%
TDS: 0to 9900 ppm
NO3-:62 to 6200 ppm (mg/L)
(10-3 to 10-1 mol/L)
NO3- -N:14 to 1400 ppm(mg/L)
39 to 3900 ppm (mg/L)
(10-3 to 10-1 mol/L)
20 to 2000 kg/10a *3
23 to 2300 ppm (mg/L)
(10-3 to 10-1 mol/L)
0.1 to 10% by weight 0.0 - 100.0 g/L salinity 0.00 to 10.00% 40 to 4000 ppm (mg/L)
(10-3 to 10-1 mol/L)
Calibration: Three-point Two-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 *8 Salt/TDS Measurement - Temp conversion (2%/°C fixed) - Auto hold - IP67 Water/Dust proof *8 Temp Compensation - Auto hold - IP67 Water/Dust proof *8 Auto stable Automatic Power Off (30 min) Temp 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.

 

Select measurement method depending on your situation and sample...

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Measurements
  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.
 

Measurements
  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.
 

 

Video

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Prices

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Prices subject to change    Prices listed in US dollars for domestic shipments within US, Canada, & Mexico only    Export orders require quotations - click here for a quote     For more info call us 1-800-762-2478 or 954-946-9454.
For more information on each individual meter CLICK HERE.
Item Number Item Prices
PH-383715 pH-22 pH meter LAQUAtwin w/electrode and Standards $140.00
CD-383722 B-722 Sodium meter, LAQUAtwin w/electrode and Standards 350.00
CD-383741 B-741 Nitrate meter, for Crops Kit 545.00
CD-383742 B-742 Nitrate meter, for Plants Kit 595.00
CD-383743 B-743 Nitrate meter, w/electrode and Standards 350.00
CD-383721 B-721 Salt meter, LAQUAtwin w/electrode and Standards 350.00
CD-383771 B-771 Conductivity meter, LAQUAtwin w/Cell and Standards 325.00
CD-383731 B-731 Potassium meter, LAQUAtwin w/electrode and Standards 350.00
CD-383751 B-751 Calcium meter, LAQUAtwin w/electrode and Standards 400.00
CD-383721EC B-721EC Salt 11 EC meter, LAQUAtwin w/electrode and Standards 150.00
Replacement Sensors:
PH-384713 S010 (pH-22 pH meter) 100.00
CD-384722 S022 (B-722 Sodium meter) 150.00
CD-384740 S040 (B-74x Nitrate meters) 150.00
CD-384721 S021 (B-721 Salt meter) 150.00
CD-384771 S070 (B-771 Conductivity meter) 100.00
CD-384731 S030 (B-731 Potassium meter) 150.00
CD-384751 S050 (B-751 Calcium meter) 150.00
CD-383721EC S071 (Salt 11 EC meter) 80.00
Calibration Solutions:
CD-385005 Y022H (B-722 Sodium meter) 44.00
CD-385010 Y021H (B-721 Salt meter) 44.00
CD-385015 Y031H (B-731 Potassium meter) 44.00
CD-385020 Y051H (B-751 Calcium meter) 44.00
CD-385025 Y041H (B-741 Nitrate meter for crops) 44.00
CD-385030 Y043 (B-743 Nitrate meter for general use) 44.00
CD-385035 Y045 (B-743 Nitrate meter) 44.00
CD-385040 Y071H (B-771 Conductivity meter) 44.00
CD-385050 Y071L (B-771 Conductivity meter) 44.00
CD-385055 Y022L (B-722 Sodium meter) 44.00
CD-385060 Y021L (B-721 Salt meter) 44.00
CD-385065 Y031L (B-731 Potassium meter) 44.00
CD-385070 Y051L (B-751 Calcium meter) 44.00
CD-385075 Y042 (B-741/742 Nitrate meters) 44.00
CD-385080 Y044 (B-742 Nitrate meter for soil) 44.00
Sampling Sheets and B-742 filter paper holder:
CD-385093 Y046 Sampling Sheets for B-742 Nitrate meter for soil 60.00



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