Get accurate direct measurement from a single drop of sample on the unique flat sensor—a result of 60 years of HORIBA’s sensor engineering technology. Select your LAQUAtwin from seven electrochemistry parameters such as pH, conductivity, various ions (Na+, K+, NO3-, Ca2+ ) and salt concentration that best suits your purpose. It’s simple & compact and is your lab-in-your-pocket. Use it wherever and whenever.
Seven water quality parameters are available to suit your requirement, such as pH, conductivity, ion concentration (Na +, K +, NO3 -, Ca 2+ ) and salt concentration. Incorporating the same principle as laboratory sensors, LAQUAtwin provides a reliable and accurate measurement.
Easy operation for both the measurement and indispensable calibration procedure. Read the data once a smiley face lights up.
The meter and sensor are fully waterproof so you can take it anywhere anywhere. No worries when water splashes during measurement or cleaning.
One meter provides seven flexible measurement techniques. Simply choose the method that best fits your sample and situation.
The compact carrying case contains everything you need for your measurements, including the standard solution. You can attach a strap or tag on the strap hole.
One meter provides seven flexible measurement techniques. Simply choose the method that best fits your sample and situation.
Drop a sample with a pipette; small volumes as 0.1 mL can be measured. Using sampling sheet B, volumes down to 0.05 mL can be tested.
When you're in the lab, you can test the sample in a beaker. Ensure the sensor guard sliding cap is open.
Use as a scoop to test water from a river. Vertical scoop is available with a unique sensor guard.
The sampling sheet allows tiny, trace volumes to be analysed. For example, wipe off the surface of the skin with a sampling sheet soaked with pure water and measure.
Foods containing some moisture can be tested by placing a small piece directly onto the sensor.
LAQUAtwin meters can also test dry powders. Simply place the powder sample onto the sensor, and add an appropriate amount of pure water.
To test sheets of paper and textiles, cut up the sample into small pieces and place them directly onto the sensor then add a defined amount of pure water.
MODEL | B-741 |
Measurement principle | Ion electrode method |
Minimum sample volume | 0.3mL or more*1 |
Measurement range | NO3-:100 to 9900ppm(mg/L) NO3--N:23 to 2200ppm(mg/L) |
Display range*3 | 0 to 9900 ppm(mg/L) |
Range and Resolution (Valid numbers) | ①0 to 1.0ppm : 0.1ppm ②0 to 99ppm : 1ppm ③100 to 990ppm : 10ppm ④1000 to 9900ppm : 100ppm |
Calibration | Two-point*4 |
Accuracy | ±10% of reading value.*5 |
Functions | Auto range change・Temperature compensation・Waterproof*6・Reading locking ・Automatic power off (30 minutes) |
Display | Custom (monochrome) Digital LCD |
Operating temperature/humidity | 5 to 40˚C, 85% or less in relative humidity (no condensation) |
Power | CR2032 batteries (x2) |
Battery life | Approx. 400 hours in continuous use |
Main Material | ABS epoxy |
Dimensions/Mass | 164mm × 29mm × 20mm (excluding projections) / Approx. 50 g (meter only, without batteries) |
Accessories included |
2 CR2032 batteries/1 Pipette/Instruction manual/Quick manual/Storage case Standard solution for crops(300ppm & 5000ppm)(14mL)Kit for crops*7 |
*1 Smaller amount(0.05mL 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))
*2 With soil/water sampling ratio of 1:5.
*3 When the measured value is out of the measurement range, the displayed value blinks.
It should be used only as a guide.
*4 Selectable between one-point and two-point calibrations.
*5 Repeatability in measurement of a standard solution after calibration using the same standard solution.
*6 IP67:no failure when immersed in water at a depth of 1 meter for 30 minutes. But the product can not be used underwater.
*7 Kit for crops:4 Pipettes , Cleaning solution bottle(250mL) , Crop sample press ,
3 Medical cups , Quick manual , Carrying case
*8 Kit for soil:4 Pipettes、Cleaning solution bottle(250mL) , 3 Extraction bottles(100mL) ,
2 sets of spoon for soil sampling , Tweezers , Sampling sheetB , 2 Sampling sheet
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