Skip to main content Skip to search Skip to main navigation

Horiba LAQUAtwin pH Tester with 3 calibration points (pH-22)

Product number: 895651
Our service hotline – We are here for you 📞 +49 (0) 5121 7609 99

Product information "Horiba LAQUAtwin pH Tester with 3 calibration points (pH-22) "

Mobile pH Tester with 3-Point Calibration for On-the-Go Use

Horiba LAQUAtwin pH Tester – ideal for water and environmental analysis

The Horiba LAQUAtwin pH Tester pH-22 is compact, robust, and designed for mobile use. With up to three calibration points and a measurement range of 0.00 to 14.00 pH, this device delivers high precision and reliability. Direct measurement with just a single drop of sample provides fast results. Features such as automatic buffer recognition, temperature compensation, and Stabil/Hold functionality make daily operation simple and convenient.

Mobile precision pH tester for reliable on-site measurements

The tester combines electrode, display, and sample container in a dust- and waterproof IP67 housing, making it ideal for field and laboratory applications. The digital backlit display shows pH and mV values clearly and accurately.

Automatic shut-off and battery status indicators ensure convenient operation. The package includes calibration buffer solutions (pH 4.01 and 7.00), batteries, a pipette, and a quick-start guide.

Why accurate pH measurement is critical – and why a handheld tester is ideal

pH is a key parameter in water, environmental, and process analysis because it significantly influences chemical reactions, biological processes, and material stability. Even small deviations can substantially impact water quality, product quality, or process safety.

A mobile handheld pH tester allows fast, reliable measurements directly on site. Changes can be detected immediately, and corrective actions implemented without delay. The Horiba LAQUAtwin pH-22 combines this flexibility with high measurement precision, making it ideal for field, laboratory, and routine applications.

Typical applications for the Horiba LAQUAtwin pH handheld tester

  • Aquaculture and coral monitoring
  • Beer, beverage, and food production
  • Heating systems
  • Laboratories and schools
  • Environmental analysis
  • Water treatment
  • Horticulture

Dimensions

Height 3,2 cm
Length 18,5 cm
Width 11 cm

Weight

Weight 200 g

Other attributes

Applications Aquaculture and Coral, Aquariums, Beer, Beverages, Environmental, Food, Heating, Horticulture, Hydroponics, Laboratory, Pools, Schools, Water Conditioning, Water Treatment, Wine
Brand Horiba
Country of origin JP
Customs tariff number 90278930
Parameter pH
Quality Advanced
Technical data

Measurement Principle: Glass Electrode

Minimum Sample Volume: 0.1 ml (0.05 ml with Sampling Sheet B)
pH Range / Resolution: 0.0 to 14.0 pH / 0.1
Accuracy: ± 0.1 pH
Maximum pH Calibration Points: 2
pH Calibration Curves:
USA: 1.68, 4.01, 7.00, 10.01 & 12.46
NIST: 1.68, 4.01, 6.86, 9.18 & 12.46
mV Range / Resolution: ± 650 mV / 1 mV
Temperature Display / Resolution: -
 
Functions
  • Automatic Buffer Recognition
  • Temperature Compensation
  • Auto Hold / Auto Stable
  • Automatic Power Off (30 mins.)
  • Low Battery Indicator
  • IP67 Water / Dust Proof
  • Replaceable Sensor
Display: Custom (Monochrome) Digital LCD with Backlight
Operating Temperature / Humidity:
5 to 40 ºC / 85% or less in relative humidity (no condensation)
Battery Life: Approx. 400 hrs. continuous use without backlight
Material: ABS epoxy body / flat glass sensor
Dimensions: 164 x 29 x 20 mm(excluding projections)
Mass: Approx. 55g (including sensor and batteries)
 
Accessories included
  • pH 7.00 & 4.01 pH Buffers (14 ml each)
  • CR2032 Batteries (2)
  • Dropper
  • Instruction & Quick Manuals
  • Small storage Case
Skip product gallery

Replacement sensor, calibration standards and accessories

Horiba LAQUAtwin S010 pH Sensor, sealed packaging and visible box, protective packaging
Horiba LAQUAtwin S010 pH Replacement Sensor for pH-11, pH-22, pH-33 tester
Product number: 895661
Measurement parameters: pH | Temperature

Manufacturer Part Nr. 3200459834

€94.01*
6 bottles of pH 6.86 buffer solution, item number 895994
Horiba pH 6.86 buffer solution (514-686)
Product number: 895994

To accurately calibrate and maintain the HORIBA LAQUAtwin Pocket Testers, HORIBA provides a special selection of buffer, calibration and standard solutions. A convenient pack size of 6 x 14 ml of these solutions meets the requirements of the pocket testers as only a few drops are needed for calibration. This specific pack size helps to reduce waste and optimize efficiency during regular calibrations. The solutions available cover a variety of measurement ranges, allowing users to select the appropriate solution to suit their individual analysis or measurement needs: - pH buffer solutions: Solutions with pH values of 4.01 or 7.00 are available to calibrate the pH measurement. With these buffers it is possible to precisely regulate and control the pH measurement function of the LAQUAtwin Pocket Tester.- Conductivity standard solutions: 1413 μS/cm standard solutions ensure that the conductivity measurement of your devices is carried out precisely.- NaCl standard solutions: 0.5% or 5.0% NaCl solutions are available for the calibration of salinity measurement.- Ion standard solutions: HORIBA provides standard solutions to calibrate ion selective measurements. HORIBA provides standard solutions for sodium, potassium, nitrate and calcium, available in different concentrations: from low (e.g. 150 ppm) to high concentrations (e.g. 5000 ppm).- Fluoride ion standard solutions: For the calibration of fluoride measurements, HORIBA offers standard solutions with concentrations of 1 ppm and 10 ppm.- TISAB solution: A special solution for use with fluoride ion standard solutions to adjust the ionic strength of the sample for precise fluoride measurements.- ORP standard solution: For the calibration of redox measurements (ORP), HORIBA offers a solution with a redox potential of 225 mV. With these special solutions, the HORIBA LAQUAtwin pocket testers always provide accurate and reliable measurement results. The integrity of their measurement data and the lifetime of their devices can be ensured by regular calibration with these specifically formulated solutions. It is of great importance to select the appropriate calibration solution and standard solution to maintain the accuracy of measurements and ensure the reliability of water quality measurements in various applications. Manufacturer Article Number: 3200691954

€57.12*
Horiba pH 4.01 buffer solution, 6 bottles
Horiba pH 4.01 Buffer Solution (514-4)
Product number: 895668
Measurement parameters: pH

To accurately calibrate and maintain the HORIBA LAQUAtwin Pocket Testers, HORIBA provides a special selection of buffer, calibration and standard solutions. A convenient pack size of 6 x 14 ml of these solutions meets the requirements of the pocket testers as only a few drops are needed for calibration. This specific pack size helps to reduce waste and optimize efficiency during regular calibrations. The solutions available cover a variety of measurement ranges, allowing users to select the appropriate solution to suit their individual analysis or measurement needs: - pH buffer solutions: Solutions with pH values of 4.01 or 7.00 are available to calibrate the pH measurement. With these buffers it is possible to precisely regulate and control the pH measurement function of the LAQUAtwin Pocket Tester.- Conductivity standard solutions: 1413 μS/cm standard solutions ensure that the conductivity measurement of your devices is carried out precisely.- NaCl standard solutions: 0.5% or 5.0% NaCl solutions are available for the calibration of salinity measurement.- Ion standard solutions: HORIBA provides standard solutions to calibrate ion selective measurements. HORIBA provides standard solutions for sodium, potassium, nitrate and calcium, available in different concentrations: from low (e.g. 150 ppm) to high concentrations (e.g. 5000 ppm).- Fluoride ion standard solutions: For the calibration of fluoride measurements, HORIBA offers standard solutions with concentrations of 1 ppm and 10 ppm.- TISAB solution: A special solution for use with fluoride ion standard solutions to adjust the ionic strength of the sample for precise fluoride measurements.- ORP standard solution: For the calibration of redox measurements (ORP), HORIBA offers a solution with a redox potential of 225 mV. With these special solutions, the HORIBA LAQUAtwin pocket testers always provide accurate and reliable measurement results. The integrity of their measurement data and the lifetime of their devices can be ensured by regular calibration with these specifically formulated solutions. It is of great importance to select the appropriate calibration solution and standard solution to maintain the accuracy of measurements and ensure the reliability of water quality measurements in various applications. Manufacturer Part No. 3999960108

€57.12*
HORIBA pH 7 calibration solution in hygienic bottle, label and structure visible
HORIBA pH 7.00 (±0.01pH @25°C) buffer solution 250ml (250-PH-7)
Product number: 895966
Size of bottle: 250 ml | pH buffer: pH 7.00 (+-0,01pH @25°C) |

Explore HORIBA's premium profile solutions for pH, ORP and conductivity measurements, specifically designed for handheld and laboratory meters. Our solutions are designed to meet the needs of different users and ensure that your measurements are accurate. Here are a few of our products that provide a clear overview and easy selection: - pH standard solutions are available in different pH value classes: e.g. 4.01, 7.00, 10.01. These solutions are indispensable for the calibration of pH electrodes and have a high degree of accuracy. - Redox standard solutions (ORP): These solutions offer values from 200 mV to 650 mV, enabling precise adjustment of redox electrodes. Standard solutions for conductivity: These are used to calibrate conductivity sensors and are available in different conductivity ranges. - Internal filling solutions: These solutions are specially designed for pH and reference electrodes and ensure optimum functionality as well as a long service life for your electrodes. Users:- Our NIST-traceable hygienic bottle solutions are ideal for environmental laboratories using pH and ORP buffer solutions to monitor water quality in natural waters. They enable safe and accurate calibration without the risk of contamination. - Our buffer solutions provide a reliable basis for compliant results in the pharmaceutical industry, where accurate pH measurements are critical for drug formulation and quality control. - Our pH and redox solutions are of great importance to the food and beverage industry and play a crucial role in the quality of products, from wine production to milk processing. - Our solutions are used by research institutions and universities to conduct their scientific experiments and train the next generation of scientists. - Our conductivity standard solutions are used by water treatment plants to improve their purification and filtration processes. Manufacturer information: Because HORIBA is synonymous with quality and precision, you can trust our professional solutions to complement your measurement equipment and extend its life. HORIBA's innovative hygienic bottles differ significantly from conventional bottles as they allow contamination-free removal by simply squeezing. As the lower part of the bottle always remains fresh and untouched, it is particularly advantageous for applications where cleanliness and accuracy are crucial. Use HORIBA solutions to ensure the accuracy of your measurements and promote the functionality of your measuring devices.

€14.28*
HORIBA pH 10.01 buffer solution, 250 ml, bottle with hygienic cap
HORIBA pH 10.01 (±0.02pH @25°C) buffer solution 250ml (250-PH-10)
Product number: 895969
Size of bottle: 250 ml | pH buffer: pH 10.01 (+-0,02pH @25°C) |

Explore HORIBA's premium profile solutions for pH, ORP and conductivity measurements, specifically designed for handheld and laboratory meters. Our solutions are designed to meet the needs of different users and ensure that your measurements are accurate. Here are a few of our products that provide a clear overview and easy selection: - pH standard solutions are available in different pH value classes: e.g. 4.01, 7.00, 10.01. These solutions are indispensable for the calibration of pH electrodes and have a high degree of accuracy. - Redox standard solutions (ORP): These solutions offer values from 200 mV to 650 mV, enabling precise adjustment of redox electrodes. Standard solutions for conductivity: These are used to calibrate conductivity sensors and are available in different conductivity ranges. - Internal filling solutions: These solutions are specially designed for pH and reference electrodes and ensure optimum functionality as well as a long service life for your electrodes. Users:- Our NIST-traceable hygienic bottle solutions are ideal for environmental laboratories using pH and ORP buffer solutions to monitor water quality in natural waters. They enable safe and accurate calibration without the risk of contamination. - Our buffer solutions provide a reliable basis for compliant results in the pharmaceutical industry, where accurate pH measurements are critical for drug formulation and quality control. - Our pH and redox solutions are of great importance to the food and beverage industry and play a crucial role in the quality of products, from wine production to milk processing. - Our solutions are used by research institutions and universities to conduct their scientific experiments and train the next generation of scientists. - Our conductivity standard solutions are used by water treatment plants to improve their purification and filtration processes. Manufacturer information: Because HORIBA is synonymous with quality and precision, you can trust our professional solutions to complement your measurement equipment and extend its life. HORIBA's innovative hygienic bottles differ significantly from conventional bottles as they allow contamination-free removal by simply squeezing. As the lower part of the bottle always remains fresh and untouched, it is particularly advantageous for applications where cleanliness and accuracy are crucial. Use HORIBA solutions to ensure the accuracy of your measurements and promote the functionality of your measuring devices. HORIBA high quality pH buffer calibration solution to calibrate your electrodes The 250 ml, 500 ml and 1000 ml bottle is characterized by a special hygienic closure, which protects the conductivity calibration solution from contamination. To provide the required calibration solution, simply squeeze the bottle together and enough conductivity calibration solution is delivered to the upper part of the bottle to perform a calibration.

€14.28*
Horiba pH 7.00 buffer solution bottle set 6 x 14 ml, front view with labels, calibration solution for pH measurement, precision buffer for LAQUAtwin testers, pH 7 neutral buffer solution
Horiba pH 7.00 Buffer Solution (514-7)
Product number: 895669
Measurement parameters: pH

To accurately calibrate and maintain the HORIBA LAQUAtwin Pocket Testers, HORIBA provides a special selection of buffer, calibration and standard solutions. A convenient pack size of 6 x 14 ml of these solutions meets the requirements of the pocket testers as only a few drops are needed for calibration. This specific pack size helps to reduce waste and optimize efficiency during regular calibrations. The solutions available cover a variety of measurement ranges, allowing users to select the appropriate solution to suit their individual analysis or measurement needs: - pH buffer solutions: Solutions with pH values of 4.01 or 7.00 are available to calibrate the pH measurement. With these buffers it is possible to precisely regulate and control the pH measurement function of the LAQUAtwin Pocket Tester.- Conductivity standard solutions: 1413 μS/cm standard solutions ensure that the conductivity measurement of your devices is carried out precisely.- NaCl standard solutions: 0.5% or 5.0% NaCl solutions are available for the calibration of salinity measurement.- Ion standard solutions: HORIBA provides standard solutions to calibrate ion selective measurements. HORIBA provides standard solutions for sodium, potassium, nitrate and calcium, available in different concentrations: from low (e.g. 150 ppm) to high concentrations (e.g. 5000 ppm).- Fluoride ion standard solutions: For the calibration of fluoride measurements, HORIBA offers standard solutions with concentrations of 1 ppm and 10 ppm.- TISAB solution: A special solution for use with fluoride ion standard solutions to adjust the ionic strength of the sample for precise fluoride measurements.- ORP standard solution: For the calibration of redox measurements (ORP), HORIBA offers a solution with a redox potential of 225 mV. With these special solutions, the HORIBA LAQUAtwin pocket testers always provide accurate and reliable measurement results. The integrity of their measurement data and the lifetime of their devices can be ensured by regular calibration with these specifically formulated solutions. It is of great importance to select the appropriate calibration solution and standard solution to maintain the accuracy of measurements and ensure the reliability of water quality measurements in various applications. Manufacturer Part No. 3999960109

€57.12*
HORIBA pH 4.01 buffer solution, 250 ml transparent hygienic bottle with white cap and label
HORIBA pH 4.01 (±0.01pH @25°C) buffer solution 250ml (250-PH-4)
Product number: 895963
Size of bottle: 250 ml | pH buffer: pH 4.01 (+-0,01pH @25°C) |

Explore HORIBA's premium profile solutions for pH, ORP and conductivity measurements, specifically designed for handheld and laboratory meters. Our solutions are designed to meet the needs of different users and ensure that your measurements are accurate. Here are a few of our products that provide a clear overview and easy selection: - pH standard solutions are available in different pH value classes: e.g. 4.01, 7.00, 10.01. These solutions are indispensable for the calibration of pH electrodes and have a high degree of accuracy. - Redox standard solutions (ORP): These solutions offer values from 200 mV to 650 mV, enabling precise adjustment of redox electrodes. Standard solutions for conductivity: These are used to calibrate conductivity sensors and are available in different conductivity ranges. - Internal filling solutions: These solutions are specially designed for pH and reference electrodes and ensure optimum functionality as well as a long service life for your electrodes. Users:- Our NIST-traceable hygienic bottle solutions are ideal for environmental laboratories using pH and ORP buffer solutions to monitor water quality in natural waters. They enable safe and accurate calibration without the risk of contamination. - Our buffer solutions provide a reliable basis for compliant results in the pharmaceutical industry, where accurate pH measurements are critical for drug formulation and quality control. - Our pH and redox solutions are of great importance to the food and beverage industry and play a crucial role in the quality of products, from wine production to milk processing. - Our solutions are used by research institutions and universities to conduct their scientific experiments and train the next generation of scientists. - Our conductivity standard solutions are used by water treatment plants to improve their purification and filtration processes. Manufacturer information: Because HORIBA is synonymous with quality and precision, you can trust our professional solutions to complement your measurement equipment and extend its life. HORIBA's innovative hygienic bottles differ significantly from conventional bottles as they allow contamination-free removal by simply squeezing. As the lower part of the bottle always remains fresh and untouched, it is particularly advantageous for applications where cleanliness and accuracy are crucial. Use HORIBA solutions to ensure the accuracy of your measurements and promote the functionality of your measuring devices. HORIBA high quality pH buffer calibration solution to calibrate your electrodes The 250 ml, 500 ml and 1000 ml bottle is characterized by a special hygienic closure, which protects the conductivity calibration solution from contamination. To provide the required calibration solution, simply squeeze the bottle together and enough conductivity calibration solution is delivered to the upper part of the bottle to perform a calibration.

€14.28*