LAQUA DS-72 BenchMeters

Benchtop Water Quality Meters

Stress-free measurement, high-end model
Water quality analysis is repeatedly performed in laboratories on a daily basis. Our high-end benchtop model was developed to provide simplicity with excellent on-site usability - from operation and maintenance through to troubleshooting.

Segment: Scientific
Division: Water Quality
Base product
Manufacturing Company: HORIBA Advanced Techno Co. Ltd.




LAQUA DS-72 meter measures conductivity, resistivity, salinity, total dissolved solids (TDS) and temperature parameters and complies with industrial pharmacopoeia standards (JIS, USP, EP, JP and CP).

The meters’ auto diagnostic function allows the user to make sure that the instruments will always give high performance and reliable measurements. Fully GLP/GMP compliant, the LAQUA can be connected to an external printer. To ensure traceability, all results are recorded together with sample name, user ID and calibration information.

We offer a comprehensive range of conductivity electrodes adapted to all type of application and sample. Recognised for their stability and longevity, HORIBA’s electrodes provide accurate measurement in all conditions.

LAQUA’s large capacitance touch screen panel:

  • The display is easy to understand and functions menu is shown
  • Switch between digital real time graphs or analogue displays during measurement with just flick of a finger
  • Full on-screen support on the meter via an electronic user guide with colour pictures that can be called-up at any time, a problem-solving guide for calibration and measurement



  • Easy navigation for meter and display available for electrode condition check
  • Full support for various pharmaceutical pure water guidelines (USP/EP/JP/CP)
  • Auto-hold function for calibration and measurement
  • Simultaneous connection to a GLP/GMP compatible printer and computer
  • Digital memory - maximum 2,000 sets of measurement data can be recorded
  • USB-PC communication and USB memory 
  • Multi-language support (Japanese, English, Chinese, Korean)


Meter Kit Available:


The appearance of items in the picture are subject to change in each region.

Package Details:

  • LAQUA DS-72 Cond/Res/Sal/TDS colour touch screen LCD meter
  • 3552-10D Platinum/Platinum black, glass-body, k=1.0 conductivity electrode with integrated temperature sensor
  • 503-S: 84 uS/cm, 1413 uS/cm, 12.88 mS/cm, and 111.8 mS/cm conductivity standard solutions (250ml each)
  • Electrode stand




ModelLAQUA DS-72
Conductivity Rangek=100 m-1:0.000 mS/m~19.99 S/m
k=10 m-1:0.0 μS/m~1.999 S/m
k=1000m-1:0.00 mS/m~199.9 S/m
Method2 AC Bipolar
Resolution0.05% of full scale
Repeatability±0.5% ±1 digit
Selectable UnitYes
Distilled Water Temperature ConversionYes
Periodical CheckYes
JIS/CP/JP/USP/EP Pharmaceutical Water ApplicationYes
Salinity Range

0.00 to 80.00 ppt

(0.000 to 8.000%)

MethodConversion from conductivity
Resolution0.01 ppt (0.001%)
Salt Concentration CalibrationYes
Resistivity Rangek=100 m-1:0.00 Ω・m~199.9 kΩ・m
k=10 m-1:0.0 Ω・m~1.999 MΩ・m
k= 1000 m-1:0.000 Ω・m~19.99 kΩ・m
MethodConversion from conductivity
Resolution0.05% F.S.
Repeatability±0.5%F.S. ±1 digit
TDS Range0.01 mg/L to 1000 g/L
MethodConversion from conductivity
Resolution0.01 mg/L
Temperature Range-30.0 to 130.0°C
Repeatability±0.1°C ±1 digit
InputBNC, phono
OutputUSB, RS232C, Analog
Data Memory2000
Data SearchYes
ID InputYes
DisplayTouch Screen Color LCD
LanguagesEnglish, Japanese, Chinese, Korean
Navigation FunctionYes
Temperature CompensationAuto / Manual
Password SettingYes
Software Upgrade FunctionYes
Operating Temperature0 to 45°C
Power RequirementAC adptor, 100-240V 50/60Hz
Dimensions170(W) x 174(D) x 73(H) mm
Waste Water Treatment and Disposal in Water Waste Management and Remediation Services
Waste Water Treatment and Disposal in Water Waste Management and Remediation Services
Brochures-LAQUA Colour Touchscreen Benchtop Meters
Size 4.91 MB
Brochures-LAQUA Electrodes & Accessories 2017
Size 3.07 MB
Instruction manuals-Bench Meters-DS-72 Instruction Manual
Size 1.48 MB
Instruction manuals-Bench Meters-DS-72 Quick Manual
Size 0.37 MB
Instruction manuals-Bench Meters-FD-70_communication_command_reference_F-72_73_74_DS-72
Size 0.33 MB


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