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| 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
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Features
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| Technical Data |
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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 |
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Technical Data
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| Technical Data |
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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.
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Select measurement method depending on your situation and sample...
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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. |
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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. |
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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. |
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| 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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