HORIBA LAQUA 2000 Series Benchtop Water Quality Meters

With over 60 years of engineering excellence, HORIBA offers a diverse range of water quality analyzers and electrodes ideal for everyday laboratory needs and demanding applications. The LAQUA 2000 Series benchtop meters are designed to provide accurate and reliable water quality measurements.

Key Features Across the Series

Sleek Design: Clean and elegant body with rounded edges.
Smaller Footprint: Compact design suitable for any lab space.
Universal Power Adaptor: Multi-voltage (100-240V) with 6 interchangeable plugs (US, UK, EU, ANZ, Korea, China).
Adjustable, Integrated Electrode Stand: Holds up to two electrodes and can be positioned on either side of the meter.
5" Digital Backlit Display: Clearly shows all important readings and indicators.
Smiley and Beep Sound: Indicate reading stability in measurement and calibration modes.
Electrode Status: Displays electrode condition based on calibration data.
Temperature Compensation: Automatic (ATC) or Manual (MTC) temperature compensation for accurate readings.
Auto Cal Standards: Icon indicates used standard solutions after calibration.
Real Time Clock: Maintains precise time and date for time-dependent functions.
Large Internal Memory: Stores up to 2000 data sets.
Auto Data Log: Captures and stores data at specified time intervals.
Password Protected: Secures meter setup with a 4-digit password.
Software Upgrade: Allows loading the latest software version.
Measurement Modes: Auto Stable, Auto Hold, and Real Time modes for flexible readings.
Audible Feedback: Emits a single beep when keys are pressed.
Adjustable Shut-Off Time: Automatically switches off the meter after a set idle period (up to 30 minutes).
Temperature Calibration: CAL Temp Mode allows for temperature calibration.
Data Acquisition Software Connectivity: Transfer data to a computer via USB using the complimentary DAS20 software (exportable to CSV/Excel/PDF).
Data Printing Capability: Print data with date and time stamps for GLP/GMP compliance.

LAQUA 2000 Series Models

LAQUA-PH2000: pH/ORP/Temp Bench Meter

This meter measures pH, ORP, and temperature, offering 3 selectable pH resolutions and accurate pH readings with automatic temperature compensation. It supports up to 6 calibration points and features a calibration alarm.

LAQUA-PH2000 Specifications
Parameter	Specification
pH Range	-2.000 to 20.000 pH
pH Resolution	0.1 / 0.01 / 0.001 pH
pH Accuracy	± 0.003 pH
pH Buffer Groups	USA, NIST, NIST2, DIN, Custom
Calibration Points	Up to 5 (USA, NIST, NIST2) / Up to 6 (DIN, Custom)
ORP Range	± 2000.0 mV
ORP Resolution	0.1 mV
ORP Accuracy	± 0.2 mV
ORP Calibration Option	Yes (Up to ± 200 mV)
Temperature Range	-30.0 to 130.0 °C / -22.0 to 266.0 °F
Temperature Resolution	0.1 °C / °F
Temperature Accuracy	± 0.5 °C / ± 0.9 °F
Temperature Calibration Option	Yes (± 10.0 °C / ± 18.0 °F range in 0.1 °C increments)
Memory	2000
Auto Data Log	Yes
Real-time Clock	Yes
Date & Time Stamp	Yes
Measurement Modes	Auto Stable / Auto Hold / Real Time
Offset & Slope Display	Yes (Segment & Average Slopes)
Calibration Alarm	Yes (Programmable: up to 90 days)
Auto Shut-Off	Yes (Programmable: up to 30 mins.)
Electrode Status	On screen display
Diagnostics	Yes
Password Setting	Yes
Software Upgrade	Yes
PC / Printer Communication	Phono jack (USB / RS232C)
Meter Inputs	BNC, phono (ATC), DC sockets
Display	5" Custom LCD with backlight and 320 segments
Power Requirement	AC adaptor 100-240V, 50-60Hz
Dimensions & Weight	155(L) x 150(W) x 67(H) mm, 765g

Meter Kits: Include meter, integrated electrode stand, universal power adaptor, and manual. Common kits include the PH2000 with a refillable glass-body pH electrode (9615S-10D) and USA pH buffers (502-S), or with NIST pH buffers (501-S).

LAQUA pH Electrodes: Available options include the Standard Electrode (9615S-10D) for general laboratory use, the Sleeve Electrode (9681S-10D) for high viscosity applications, and the Micro Electrode (9618S-10D) for precious trace samples.

LAQUA-EC2000: Conductivity/Resistivity/TDS/Salinity/Temp Bench Meter

This meter measures conductivity, resistivity, TDS, salinity, and temperature. It supports auto and manual conductivity calibrations, calculates resistivity, TDS, and salinity from conductivity readings, and provides accurate conductivity measurements with ATC. It accepts up to 5 conductivity calibration points and allows 1-point salinity calibration.

LAQUA-EC2000 Specifications
Parameter	Specification
Conductivity Range	0.000 to 1.999 µS/cm (k=0.1) up to 0.200 to 2.000 S/cm (k=10)
Units	µS/cm, mS/cm, S/cm, S/m (auto ranging)
Resolution	0.05% full scale
Accuracy	± 0.6% full scale; ± 1.5% full scale > 18.0 mS/cm
Reference Temperature	15.0 to 30.0 °C (adjustable)
Temperature Coefficient	0.00 to 10.00% per °C (adjustable)
Cell Constants	0.0700 to 13.000 (adjustable)
Calibration Points	Up to 4 (Auto) / Up to 5 (Manual)
Resistivity Range	0.000 Ω·cm to 20.0 MΩ·cm
Resistivity Resolution	0.5% full scale
Resistivity Accuracy	± 0.6% full scale; ± 1.5% full scale > 1.80 MΩ·cm
TDS Range	0.01 to 9.99 mg/L (ppm) up to 10.0 to 100 g/L (ppt)
TDS Resolution	0.01, 0.1, 1 mg/L / g/L (ppm → ppt)
TDS Accuracy	± 0.1% full scale
TDS Curves	EN27888, 442, NaCl, Linear (0.40 to 1.00)
Salinity Range	0.0 to 100.0 ppt / 0.00 to 10.00%
Salinity Resolution	0.1 ppt / 0.01%
Salinity Accuracy	± 0.2% full scale
Salinity Curves	NaCl / Seawater
Calibration Option	Yes
Temperature Range	-30.0 to 130.0 °C / -22.0 to 266.0 °F
Temperature Resolution	0.1 °C/°F
Temperature Accuracy	± 0.5 °C / ± 0.9 °F
Temperature Calibration Option	Yes (± 10.0 °C / ± 18.0 °F range in 0.1 °C increments)
Memory	2000
Auto Data Log	Yes
Real-time Clock	Yes
Date & Time Stamp	Yes
Measurement Modes	Auto Stable / Auto Hold / Real Time
Auto Shut-Off	Yes (Programmable: up to 30 mins.)
Electrode Status	On screen display
Diagnostics	Yes
Password Setting	Yes
Software Upgrade	Yes
PC / Printer Communication	Phono jack (USB / RS232C)
Meter Inputs	BNC, phono, DC sockets
Display	5" Custom LCD with backlight and 320 segments
Power Requirement	AC adaptor 100-240V, 50-60Hz
Dimensions & Weight	155(L) x 150(W) x 67(H) mm, 765g

Meter Kits: Include meter, integrated electrode stand, universal power adaptor, and manual. A common kit features the EC2000 with a Titanium/Platinum plastic-body conductivity electrode (k=1.0) and Conductivity standard solutions kit (503-S).

LAQUA Conductivity Electrodes: Options include Stainless Steel (9371-10D) for low conductivity, Titanium (9382-10D) for general purpose, and Platinum (3553-10D) for high conductivity applications.

LAQUA-ION2000: pH/ORP/Ion/Temp Bench Meter

This meter measures pH, ORP, and ion concentrations in various units. It provides direct ion measurements, accurate pH and ORP readings with ATC, and supports up to 5 user-defined ion calibration points. It also records segment slope(s) and average slope after ion calibration.

LAQUA-ION2000 Specifications
Parameter	Specification
pH Range	-2.000 to 20.000 pH
pH Resolution	0.1 / 0.01 / 0.001 pH
pH Accuracy	± 0.003 pH
pH Buffer Groups	USA, NIST, NIST2, DIN, Custom
Calibration Points	Up to 5 (USA, NIST, NIST2) / Up to 6 (DIN, Custom)
ORP Range	± 2000.0 mV
ORP Resolution	0.1 mV
ORP Accuracy	± 0.2 mV
ORP Calibration Option	Yes (Up to ± 200 mV)
Ion Range	0.000 µg/L to 9999 g/L
Units	µg/L, mg/L, g/L, ppm, ppt, mmol/L, mol/L
Resolution	4 Significant digits
Accuracy	± 0.3% full scale or ± 0.2 mV, whichever is higher
Calibration Points	Up to 5
Temperature Range	-30.0 to 130.0 °C / -22.0 to 266.0 °F
Temperature Resolution	0.1 °C/°F
Temperature Accuracy	± 0.5 °C / ± 0.9 °F
Temperature Calibration Option	Yes (± 10.0 °C / ± 18.0 °F range in 0.1 °C increments)
Memory	2000
Auto Data Log	Yes
Real-time Clock	Yes
Date & Time Stamp	Yes
Measurement Modes	Auto Stable / Auto Hold / Real Time
Offset & Slope Display	Yes (Segment & Average Slopes)
Calibration Alarm	Yes (Programmable: up to 90 days)
Auto Shut-Off	Yes (programmable: up to 30 mins.)
Electrode Status	On screen display
Diagnostics	Yes
Password Setting	Yes
Software Upgrade	Yes
PC / Printer Communication	Phono jack (USB / RS232C)
Meter Inputs	BNC, phono (ATC), DC sockets
Display	5" Custom LCD with backlight and 320 segments
Power Requirement	AC adaptor 100-240V, 50-60Hz
Dimensions & Weight	155(L) x 150(W) x 67(H) mm, 765g

Meter Kits: Include meter, integrated electrode stand, universal power adaptor, and manual. Kits are available with specific ion electrodes such as Ammonia (5002S-10C), Calcium (6583S-10C), Chloride (6560S-10C), Fluoride (6561S-10C), Nitrate (6581S-10C), and Potassium (6582S-10C).

The meter allows selection of ion electrode types and ion valence settings.

LAQUA-DO2000: DO/BOD/Temp Bench Meter

This meter measures dissolved oxygen (DO) and biochemical oxygen demand (BOD), and temperature. It compensates for salinity, barometric pressure, and temperature effects in DO readings. It allows auto and manual DO calibrations with galvanic DO electrodes and accepts up to 2 DO calibration points. It also records span coefficient after DO calibration and calculates 5-day BOD with seed correction option.

LAQUA-DO2000 Specifications
Parameter	Specification
DO Range	0.0 to 60.00 mg/L, 0.0 to 600.0%
Resolution	0.01 mg/L, 0.1%
Accuracy	+/- 0.1 mg/L , +/- 1.0%
Salinity Compensation	0.0 to 40.0 ppt
Barometric Pressure Compensation	10.0 to 200.0 kPa
BOD Measurement	5-day BOD with seed correction option
DO Probe Type	Galvanic integrated with temperature sensor
Calibration Points	Up to 2
Temperature Range	-30.0 to 130.0 °C / -22.0 to 266.0 °F
Temperature Resolution	0.1 °C/°F
Temperature Accuracy	± 0.5 °C / ± 0.9 °F
Temperature Calibration Option	Yes (± 10.0 °C / ± 18.0 °F range in 0.1 °C increments)
Memory	2000
Auto Data Log	Yes
Real-time Clock	Yes
Date & Time Stamp	Yes
Measurement Modes	Auto Stable / Auto Hold / Real Time
Auto Shut-Off	Yes (Programmable: up to 30 mins.)
Electrode Status	On screen display
Diagnostics	Yes
Password Setting	Yes
Software Upgrade	Yes
PC / Printer Communication	Phono jack (USB / RS232C)
Meter Inputs	BNC, phono (ATC), DC sockets
Display	5" Custom LCD with 320 segments and backlight
Power Requirement	AC adaptor 100-240V, 50-60Hz
Dimensions & Weight	155(L) x 150(W) x 67(H) mm, 765g

Meter Kits: Include meter, integrated electrode stand, universal power adaptor, and manual. A common kit features the DO2000 with a Galvanic DO Electrode (9521-10D) and its associated stirrer.

LAQUA-PC2000: pH/ORP/Ion/Conductivity/Resistivity/TDS/Salinity/Temp Bench Meter

This is a multi-parameter meter combining the capabilities of the ION2000 and EC2000 models, featuring dual channel input. It measures pH, ORP, Ion, Conductivity, Resistivity, TDS, Salinity, and Temperature.

LAQUA-PC2000 Specifications
Parameter	Specification
pH Range	-2.000 to 20.000 pH
pH Resolution	0.1 / 0.01 / 0.001 pH
pH Accuracy	± 0.003 pH
pH Buffer Groups	USA, NIST, NIST2, DIN, Custom
Calibration Points	Up to 5 (USA, NIST, NIST2) / Up to 6 (DIN, Custom)
ORP Range	± 2000.0 mV
ORP Resolution	0.1 mV
ORP Accuracy	± 0.2 mV
ORP Calibration Option	Yes (Up to ± 200 mV)
Ion Range	0.000 µg/L to 9999 g/L
Units	µg/L, mg/L, g/L, ppm, ppt, mmol/L, mol/L
Resolution	4 Significant digits
Accuracy	± 0.3% full scale or ± 0.2 mV, whichever is higher
Calibration Points	Up to 5
Conductivity Range	0.000 to 1.999 µS/cm (k=0.1) up to 0.200 to 2.000 S/cm (k=10)
Units	µS/cm, mS/cm, S/cm, S/m (auto ranging)
Resolution	0.05% full scale
Accuracy	± 0.6% full scale; ± 1.5% full scale > 18.0 mS/cm
Reference Temperature	15.0 to 30.0 °C (adjustable)
Temperature Coefficient	0.00 to 10.00% per °C (adjustable)
Cell Constants	0.0700 to 13.000 (adjustable)
Calibration Points	Up to 4 (Auto) / Up to 5 (Manual)
Resistivity Range	0.000 Ω·cm to 20.0 MΩ·cm
Resistivity Resolution	0.5% full scale
Resistivity Accuracy	± 0.6% full scale; ± 1.5% full scale > 1.80 MΩ·cm
TDS Range	0.01 to 9.99 mg/L (ppm) up to 1.00 to 9.99 g/L (ppt)
TDS Resolution	0.01, 0.1, 1 mg/L / g/L (ppm → ppt)
TDS Accuracy	± 0.1% full scale
TDS Curves	EN27888, 442, NaCl, Linear (0.40 to 1.00)
Salinity Range	0.0 to 100.0 ppt / 0.00 to 10.00%
Salinity Resolution	0.1 ppt / 0.01%
Salinity Accuracy	± 0.2% full scale
Salinity Curves	NaCl / Seawater
Calibration Option	Yes
Temperature Range	-30.0 to 130.0 °C / -22.0 to 266.0 °F
Temperature Resolution	0.1 °C/°F
Temperature Accuracy	± 0.5 °C / ± 0.9 °F
Temperature Calibration Option	Yes (± 10.0 °C / ± 18.0 °F range in 0.1 °C increments)
Memory	2000
Auto Data Log	Yes
Real-time Clock	Yes
Date & Time Stamp	Yes
Measurement Modes	Auto Stable / Auto Hold / Real Time
Offset & Slope Display	Yes (Segment & Average Slopes)
Calibration Alarm	Yes (Programmable: up to 90 days)
Auto Shut-Off	Yes (Programmable: up to 30 mins.)
Electrode Status	On screen display
Diagnostics	Yes
Password Setting	Yes
Software Upgrade	Yes
PC / Printer Communication	Phono jack (USB / RS232C)
Meter Inputs	2 x BNC, 2 x phono (ATC), DC sockets
Display	5" Custom LCD with backlight and 320 segments
Power Requirement	AC adaptor 100-240V, 50-60Hz
Dimensions & Weight	155(L) x 150(W) x 67(H) mm, 770g

Meter Kits: Include meter, integrated electrode stand, universal power adaptor, and manual. Common kits include the PC2000 with refillable glass-body pH electrode (9615S-10D), Ti/Pt conductivity cell (9382-10D), USA pH buffers (502-S), and Conductivity standard solutions (503-S), or with NIST pH buffers (501-S) and Conductivity standard solutions (503-S).

LAQUA-PD2000: pH/ORP/Ion/DO/BOD/Temp Bench Meter

This is a multi-parameter meter combining the capabilities of the ION2000 and DO2000 models, featuring dual channel input. It measures pH, ORP, Ion, DO, BOD, and Temperature.

LAQUA-PD2000 Specifications
Parameter	Specification
pH Range	-2.000 to 20.000 pH
pH Resolution	0.1 / 0.01 / 0.001 pH
pH Accuracy	± 0.003 pH
pH Buffer Groups	USA, NIST, NIST2, DIN, Custom
Calibration Points	Up to 5 (USA, NIST, NIST2) / Up to 6 (DIN, Custom)
ORP Range	± 2000.0 mV
ORP Resolution	0.1 mV
ORP Accuracy	± 0.2 mV
ORP Calibration Option	Yes (Up to ± 200 mV)
Ion Range	0.000 µg/L to 9999 g/L
Units	µg/L, mg/L, g/L, ppm, ppt, mmol/L, mol/L
Resolution	4 Significant digits
Accuracy	± 0.3% full scale or ± 0.2 mV, whichever is higher
Calibration Points	Up to 5
DO Range	0.0 to 60.00 mg/L, 0.0 to 600.0%
DO Resolution	0.01 mg/L, 0.1%
DO Accuracy	+/- 0.1 mg/L , +/- 1.0%
Salinity Compensation	0.0 to 40.0 ppt
Barometric Pressure Compensation	10.0 to 200.0 kPa
BOD Measurement	5-day BOD with seed correction option
DO Probe Type	Galvanic integrated with temperature sensor
Calibration Points	Up to 2
Temperature Range	-30.0 to 130.0 °C / -22.0 to 266.0 °F
Temperature Resolution	0.1 °C/°F
Temperature Accuracy	± 0.5 °C / ± 0.9 °F
Temperature Calibration Option	Yes (± 10.0 °C / ± 18.0 °F range in 0.1 °C increments)
Memory	2000
Auto Data Log	Yes
Real-time Clock	Yes
Date & Time Stamp	Yes
Measurement Modes	Auto Stable / Auto Hold / Real Time
Offset & Slope Display	Yes (Segment & Average Slopes)
Calibration Alarm	Yes (Programmable: up to 90 days)
Auto Shut-Off	Yes (Programmable: up to 30 mins.)
Electrode Status	On screen display
Diagnostics	Yes
Password Setting	Yes
Software Upgrade	Yes
PC / Printer Communication	Phono jack (USB / RS232C)
Meter Inputs	2 x BNC, 2 x phono (ATC), DC sockets
Display	5" Custom LCD with 320 segments and backlight
Power Requirement	AC adaptor 100-240V, 50-60Hz
Dimensions & Weight	155(L) x 150(W) x 67(H) mm, 770g

Meter Kits: Include meter, integrated electrode stand, universal power adaptor, and manual. Common kits feature the PD2000 with a DO electrode (9521-10D) and pH electrode (9615S-10D), along with corresponding buffer kits.

Solutions & Accessories

HORIBA offers a comprehensive range of solutions and accessories to complement the LAQUA 2000 Series meters:

pH Buffers

Kits: NIST pH Buffers Kit (501-S), USA pH Buffers Kit (502-S).
Individual Buffers: pH 1.68 (500-2), pH 4.01 (500-4), pH 6.86 (500-686), pH 7.00 (500-7), pH 9.18 (500-9), pH 10.01 (500-10), pH 12.46 (500-12). Available in 500ml bottles.

Conductivity Standards

Kit: Conductivity Standard Solutions Kit (503-S) including 84µS/cm, 1413µS/cm, 12.88mS/cm & 111.8mS/cm standards (250ml each).
Individual Standards: 84µS/cm (500-21), 1413µS/cm (500-22), 12.88mS/cm (500-23), 111.8mS/cm (500-24). Available in 500ml bottles.

ORP Standard Solution & Powders

ORP Standard Solution 225 mV (500-225).
ORP Powders for 89 mV (160-51) and 258 mV (160-22) solutions.

Ion Standard Solutions

Available for Ammonium, Calcium, Chloride, Fluoride, Nitrate, and Potassium, in 1000 mg/L (e.g., 500-NH4-SH) and 100 mg/L (e.g., 500-NH4-SL) concentrations, in 500ml bottles.

Ionic Strength Adjustors

Available for Ammonia (500-NH3-ISA), Calcium (500-CA-ISA), Chloride (500-CL-ISA), Fluoride (500-F-TISAB), Nitrate (500-NO3-ISA), and Potassium (500-K-ISA). Available in 500ml bottles.

Electrode Filling Solutions

Available for pH/ORP electrodes (3.33M KCl, e.g., 525-3, 300), and specific ion electrodes (Ammonia, Calcium, Chloride, Fluoride, Nitrate, Potassium). Available in 250ml or 500ml bottles.

pH Electrode Cleaning Solutions

General Contaminants (220, 50ml x 2).
Rejuvenating Electrode (230, Solution A 30ml + Solution B 100ml).
Protein Contaminants (250, 400ml).

Accessories

Integrated Electrode Stand for LAQUA 2000 Series Bench Meters.
Digital Simulators: X-51 (pH/mV/Ion/DO/Temp), X-52 (Conductivity/Temp).
Universal power adaptor.
Printers (120V/230V) with paper.
PC Cable (USB) and Printer Cable (RS232).
Printer Paper and Ink Ribbons.

Further Information

Visit the HORIBA website at www.horiba-laqua.com for a wealth of useful information, including an online 'Selection Guide' to help find the perfect LAQUA meter and electrode for your needs.

Explore HORIBA's YouTube channel for more videos and insights.

Note: Contents are subject to change without prior notice. Product colors may differ from images due to printing limitations.

Company Information:

Asia Pacific: HORIBA Instruments (Singapore) Pte. Ltd., 83 Science Park Drive, #02-02A, The Curie, Singapore 118258. Phone: 65 6908-9660, Fax: 65 6745-8155, e-mail: laqua@horiba.com

Europe, Middle East, & Africa: HORIBA UK Limited, Kyoto Close, Moulton Park, Northampton NN3 6FL. Phone: +44 1604 642500, e-mail: waterquality@horiba.com

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