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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
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Features
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- 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
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Technical Data
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| Technical Data |
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pH |
Conductivity (EC) |
Salt 11 EC |
Sodium Ion
(NA+) |
Calcium Ion
(Ca2+) |
| Model: |
pH-22 |
B-771 |
B-721EC |
B-722 |
B-751 |
| Measurement Principle: |
Glass electrode method |
2 AC bipolar |
2 AC bipolar |
Ion electrode
method |
| Min Sample Volume: |
0.05 mL*2 or 0.1 mL more*2 |
0.12 mL or more |
0.12 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 |
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-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 |
Auto stable Automatic Power Off (30 min) |
Temp Compensation - Auto hold - IP67 Water/Dust proof *8 |
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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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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| Item Number |
Item |
Prices |
pH Meter (pH-22) - Meter, electrode, 14mL 7 Buffer, 14mL 4 Buffer, case
Conductivity Meter (B-771) - Meter, electrode, 14mL 1.41mS/cm standard, case
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
Sodium Ion Meter B-722 - Meter, electrode, 14mL 2000ppm, 14mL 150 ppm, case
Calcium Ion Meter B-751 - Meter, electrode, 14mL 2000ppm, 14mL 150 ppm, case |
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| PH-383715 |
LAQUAtwin pH-22 pH Meter, w/electrode and standards |
$150.00 |
| CD-383771 |
LAQUAtwin B-771 Conductivity Meter, w/cell and standards |
394.00 |
| 15014 |
LAQUAtwin B-721EC Salt 11 EC Meter, w/electrode and standards |
386.00 |
| CD-383751 |
LAQUAtwin B-751 Calcium meter, w/electrode and Standards |
471.00 |
| CD-383722 |
LAQUAtwin B-722 Sodium meter, w/electrode and Standards |
412.00 |
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