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

Manufacturer Part No. 3999960124 LAQUAtwin PH-33: The world's first pocket-sized PH meter Your mobile laboratory - for use on site: Ideal for water quality testing in aquatic, drinking and process water and many other applications. HORIBA's unique compact meter integrates electrode, display and sample container to enable simple, effective on-site testing by direct measurement with a single drop. Minimum sample volume: 0.1 ml (0.05 ml with sampling sheet B) Up to 5 calibration points pH, mV and temperature display Automatic calibration Automatic buffer recognition: USA & NIST pH buffers Automatic temperature compensation Temperature calibration: 5 to 40.0 ºC Automatic stable / automatic hold measurement Automatic switch off: 30 min. Low battery indicator IP67 rating dust and waterproof Replaceable sensor 400 hours battery life: continuous operation without backlight Material: ABS epoxy Display: customised (monochrome) LCD with backlight Operating conditions: 5 to 40°C, 85% or less relative humidity Warranty: 2 years - meter, 6 months - sensor Packed in a practical carrying case Supplied with pH 4.01 & 7.00 buffers (14ml each), 2 x CR2032 batteries, dropper, instructions and quick reference guide

Precise Potassium Ion Measurement on the Go – Mobile, Reliable, and Easy Precise potassium ion measurement with 2-point calibration and integrated temperature display The Horiba K-11 Potassium Pocket Tester was designed to determine potassium in a wide variety of samples with high precision. Thanks to the ion-selective electrode and the digital LCD screen with backlight, the tester is perfect for mobile water quality and environmental analyses. The minimal sample volume of only 0.3 ml (0.05 ml with sampling sheet) ensures reliable results even with small sample sizes. With its 2-point calibration and automatic standard recognition, the device can be flexibly adapted to different measurement conditions. The IP67 rating for dust and water protection, along with a long battery life of up to approximately 400 hours, makes the tester highly reliable for mobile use. Technical Features for Reproducible Potassium Measurements The potassium tester covers a wide measurement range from 4 to 9,900 ppm (mg/L) and additionally displays temperatures up to 50 °C with a resolution of 0.1 °C. The integrated temperature compensation ensures stable results even under changing environmental conditions. Automatic standard recognition, adjustable calibration values, and multiplication compensation guarantee high reproducibility across different sample types. This makes the K-11 suitable for both routine and demanding analytical tasks. Why Potassium Measurement Is Important – Ideal with the Horiba K-11 Hand Tester Potassium is an essential parameter in water, environmental, agricultural, and food analysis. In water bodies, potassium content affects water quality, in soils it is a key nutrient for healthy plant growth, and in food it plays an important role for nutrition and labeling requirements. A mobile potassium hand tester enables rapid on-site analysis without time-consuming laboratory testing. Changes can be detected immediately, and decisions can be made right away. The Horiba K-11 combines this flexibility with high measurement accuracy and ease of use – ideal for fieldwork, routine checks, and scientific studies. Where Can It Be Used? Environmental Monitoring: The K-11 is a fast and precise measurement tool for environmental technicians and scientists monitoring potassium concentrations in water bodies to ensure water quality and identify contamination sources. Agriculture: The K-11 allows farmers and agronomists to measure potassium in soil. This is crucial for fertilizer application and improving plant growth. Easy evaluation of soil extracts enables precise nutrient requirement determination. Food Industry: The tester is used by quality assurance personnel to check potassium content in beverages and food. These measurements are important for product development, health assessments, and compliance with nutritional labeling requirements. Teaching, Research, and Development: By deepening the understanding of potassium’s role in biological and chemical processes, the K-11 serves researchers and educators as a useful tool for experimental studies and educational purposes.

Manufacturer Part Nr. 3200459834

The HORIBA LAQUAtwin Pocket Tester series provides a comprehensive solution for fast and precise measurement of water quality parameters directly in the field. To ensure these measurements remain reliable and accurate, regular monitoring of the sensors and, if necessary, replacement with spare sensors is crucial. These replacement sensors are tailor-made for the HORIBA LAQUAtwin series and cover a wide range of types for various measurements: pH, conductivity, salinity, redox (ORP), as well as ion-selective sensors for sodium, potassium, nitrate, calcium, and fluoride. Each sensor is designed to maximize user-friendliness and accuracy, which HORIBA is renowned for in water quality testing worldwide. HORIBA replacement sensors guarantee users that their devices consistently deliver optimal performance and precise measurements. Advantages of HORIBA Replacement Sensors: Easy Replacement: Sensors can be exchanged quickly, allowing uninterrupted measurement. High Accuracy: Replacement sensors ensure precise and reliable results. Wide Measurement Range: Various sensor types are available to capture a broad spectrum of water quality parameters. Durability: Sensors are designed for long service life, even under challenging conditions. Sensor Replacement Instructions: Follow these steps to replace the sensor and maintain the longevity and accuracy of your HORIBA LAQUAtwin Pocket Tester: Removing the Sensor: Turn off the tester. Lift the sensor tip slightly and pull the sensor away from the device. Completely detach the sensor from the tester. Installing the Sensor: Make sure the tester is turned off. Ensure the waterproof gasket is intact and clean. Attach the sensor to the tester so that hook “A” on the back of the device fits into hole “a” on the sensor tip. Make sure the waterproof gasket is not twisted. Important: After replacing the sensor, follow the instructions in the user manual of the respective tester to make the device ready for accurate measurements. This typically includes calibration and, if necessary, conditioning. How can I tell if my sensor is worn out? Check the sensor condition as follows: Perform a 2-point calibration. If an error occurs during calibration, this indicates that the sensor has deteriorated. In this case, the sensor should be replaced. Regular checks and timely replacement of sensors ensure the high quality and reliability of your water quality measurements with HORIBA LAQUAtwin Pocket Testers. Manufacturer Part Nr. 3200459866

HORIBA LAQUAtwin Pocket Tester Sensors – Quick, Accurate, and Reliable The HORIBA LAQUAtwin Pocket Tester series enables fast and precise on-site measurement of water quality parameters. To ensure consistently reliable results, it is essential to check the sensors regularly and replace them when necessary.These replacement sensors are specially designed for the HORIBA LAQUAtwin series and are available in a wide range of variants for different measurements: pH, conductivity, salinity, redox (ORP), and ion-selective sensors for sodium, potassium, nitrate, calcium, and fluoride. Each sensor is engineered for maximum user-friendliness and accuracy—qualities that have made HORIBA a global leader in water quality testing.  Benefits of HORIBA Replacement Sensors: Easy replacement – Simple sensor exchange allows quick resumption of measurements. High accuracy – Ensures precise and reliable measurement results. Wide application range – Different sensors available for various water quality parameters. Durability – Designed for long service life, even under demanding conditions.Sensor Replacement InstructionsRemoving the sensor:  Switch off the tester.  Lift the sensor tip, then slide it slightly away from the device.  Pull the sensor out completely.  Attaching the sensor:  Ensure the tester is switched off.  Check that the waterproof seal is clean and intact.  Press the sensor into the device so that hook "A" on the tester fits into hole "a" on the sensor tongue.  Make sure the seal is not twisted. Important: After replacement, follow the instructions in your tester’s user manual to resume operation. Calibration—and in some cases conditioning—may be required. (Calibration instructions are included with the product.)  FAQ – Checking Sensor WearQ: How can I tell if my sensor is worn out? A: Perform a 2-point calibration. If a calibration error occurs, this indicates sensor deterioration and the sensor should be replaced.Regular inspection and timely replacement of sensors will ensure the long-term accuracy, reliability, and high quality of your HORIBA LAQUAtwin Pocket Tester measurements. Manufacturer Part Nr. 3200459867

Manufacturer Part Nr. 3200459868

HORIBA Nitrate Replacement Sensor (S040) for Pocket Testers NO3-11, NO3-11C and NO3-11SThe HORIBA LAQUAtwin Pocket Tester series allows water quality parameters to be measured quickly and accurately on site. To ensure that these measurements are reliable and accurate, it is very important to check the sensors regularly and replace them with replacement sensors if necessary. These replacement sensors have been specially developed for the HORIBA LAQUAtwin series and offer a wide range of variants for different measurements: pH value, conductivity, salinity, redox (ORP) and ion-selective sensors for sodium, potassium, nitrate, calcium and fluoride. Each of these sensors has been designed with the aim of maximising user-friendliness and accuracy, for which HORIBA is known worldwide in the field of water quality testing. The advantages of HORIBA replacement sensors are: Easy replacement: It is easy to replace the sensors, allowing measurements to be resumed quickly. Highest accuracy: The replacement sensors ensure that the measurement results are precise and reliable.Wide range of measurements: Different types of sensors are available for different water quality parameters.Durability: The sensors are designed to have a long service life even under challenging conditions. Instructions for replacing the sensor: To ensure that your HORIBA LAQUAtwin Pocket Tester is durable and accurate, please follow these steps when replacing the sensor:Remove the sensor Switch off the measuring device. Lift the tip of the sensor. Then slide the sensor slightly away from the measuring device. Remove the sensor completely from the measuring device (by pulling).Attaching the sensor  Switch off the measuring device. Make sure that the water-repellent seal is clean and undamaged. Press the sensor onto the measuring device so that hook ‘A’ on the back of the device fits into hole ‘a’ on the tongue of the sensor.Make sure that the waterproof seal is not twisted. Important:To put the measuring device back into operation for correct measurement, follow the steps in the operating instructions for the corresponding tester after replacement. (Our products include such instructions. In most cases, calibration and, if necessary, conditioning are required.)  Question: How can I check if my sensor is worn out?  Answer: By checking the condition of the sensor as follows:  Perform a 2-point calibration to check the sensor condition. If a calibration error occurs, this suggests that the sensor is deteriorating. The sensor should therefore be replaced.  Regular checks and timely replacement of sensors ensure the high quality and reliability of your water quality measurements using the HORIBA LAQUAtwin Pocket Testers.  Manufacturer item number: 3200459870

The HORIBA LAQUAtwin Pocket Tester series provides a comprehensive solution for immediate and precise measurement of water quality parameters directly in the field. To ensure these measurements remain reliable and accurate, regular monitoring of the sensors and, if necessary, replacement with spare sensors is essential. The replacement sensors are specifically designed for the HORIBA LAQUAtwin series and cover a wide range of types for various measurements: pH, conductivity, salinity, redox (ORP), as well as ion-selective sensors for sodium, potassium, nitrate, calcium, and fluoride. Each sensor is engineered to maximize user-friendliness and accuracy, qualities for which HORIBA is globally recognized in water quality testing. HORIBA replacement sensors ensure that users’ devices consistently deliver optimal performance and precise measurements. Advantages of HORIBA Replacement Sensors: Easy Replacement: The sensors can be replaced quickly, allowing measurements to continue without delay. High Precision: Replacement sensors ensure that results are accurate and reliable. Wide Measurement Range: Various sensor types are available to cover a broad spectrum of water quality parameters. Durability: The sensors are designed for long service life, even under challenging conditions. Sensor Replacement Instructions: Follow these steps when replacing the sensor to ensure the longevity and accuracy of your HORIBA LAQUAtwin Pocket Tester: Removing the Sensor: Turn off the tester. Lift the sensor tip slightly and pull the sensor a short distance away from the device. Completely detach the sensor from the tester. Installing the Sensor: Ensure the tester is turned off. Check that the waterproof gasket is intact and clean. Place the sensor onto the tester so that hook “A” on the back of the device fits into hole “a” on the sensor tip. Make sure the waterproof gasket is not twisted. Important: After replacing the sensor, follow the instructions in the user manual of the respective tester to make the device ready for accurate measurement. These manuals are available with the products and typically require calibration and, if necessary, conditioning. How can I tell if my sensor is worn out? Check the sensor condition as follows: Perform a 2-point calibration. If an error occurs during calibration, this indicates that the sensor has deteriorated. In this case, the sensor should be replaced. Regular checks and timely sensor replacement ensure that water quality measurements with HORIBA LAQUAtwin Pocket Testers remain accurate and reliable. Manufacturer Part Nr. 3200459869

The HORIBA LAQUAtwin Pocket Testers provide a comprehensive solution for immediate and precise measurement of water quality parameters directly in the field. To ensure that these measurements remain reliable and accurate, it is essential to regularly check the sensors and replace them with spare sensors if necessary. The replacement sensors, developed specifically for the HORIBA LAQUAtwin series, cover a variety of types for different measurements: pH, conductivity, salinity, redox (ORP), as well as ion-selective sensors for sodium, potassium, nitrate, calcium, and fluoride. Each of these sensors is designed to maximize user-friendliness and precision, qualities for which HORIBA is globally recognized in water quality testing. HORIBA replacement sensors ensure that users’ devices consistently deliver optimal performance and accurate measurements. Advantages of HORIBA Replacement Sensors: Easy Replacement: Sensors can be replaced quickly, allowing measurements to continue without delay. High Precision: Replacement sensors ensure results are accurate and reliable. Comprehensive Measurement Range: Various sensor types are available to measure a wide range of water quality parameters. Durability: Sensors are designed for long service life even under challenging conditions. Sensor Replacement Instructions: To ensure the longevity and accuracy of your HORIBA LAQUAtwin Pocket Tester, follow these steps when replacing a sensor: Removing the Sensor: Turn off the tester. Slightly move the sensor away from the device and lift the sensor tip. Detach the sensor completely from the tester so there is no connection between the two parts. Installing the Sensor: Ensure the tester is turned off. Check that the waterproof gasket is clean and intact. Attach the sensor to the tester by inserting hook “A” on the back of the device into hole “a” on the sensor tip. Ensure that the waterproof gasket is not twisted. Important: After replacing the sensor, follow the instructions in the user manual of the respective tester to make the device ready for accurate measurement. (These manuals are available with the products. Calibration and, if necessary, conditioning are usually required.) How can I check if my sensor shows signs of wear? Check the sensor condition as follows: Perform a 2-point calibration. If an error occurs during calibration, this indicates that the sensor has deteriorated. In this case, it is recommended to replace the sensor. Regular checks and timely replacement of sensors are essential to ensure the high standards and reliability of water quality measurements performed with HORIBA LAQUAtwin Pocket Testers. Manufacturer Part Nr. 3200934450

Manufacturer Part Nr. 3200459672

The HORIBA LAQUAtwin Pocket Testers provide a comprehensive solution for immediate and precise measurement of water quality parameters directly in the field. To ensure that these measurements remain reliable and accurate, it is important to regularly check the sensors and replace them with spare sensors if necessary. The replacement sensors developed for the HORIBA LAQUAtwin series cover various types for different measurements: pH, conductivity, salinity, redox (ORP), as well as ion-selective sensors for sodium, potassium, nitrate, calcium, and fluoride. All of these sensors are designed to maximize user-friendliness and precision, qualities for which HORIBA is globally recognized in water quality testing. HORIBA replacement sensors ensure that users’ devices consistently deliver optimal performance and accurate measurements. Advantages of HORIBA Replacement Sensors: Easy Replacement: Sensors can be quickly exchanged, allowing measurements to continue without delay. High Precision: Replacement sensors ensure that results are exact and reliable. Wide Measurement Range: Various sensor types are available to capture a broad spectrum of water quality parameters. Durability: Sensors are designed for long service life, even under challenging conditions. Sensor Replacement Instructions: To ensure the longevity and accuracy of your HORIBA LAQUAtwin Pocket Tester, please follow these instructions when replacing a sensor: Removing the Sensor: Turn off the tester. Carefully detach the sensor from the device and lift the sensor tip. Completely separate the sensor from the tester so that the two components are no longer connected. Installing the Sensor: Ensure the tester is turned off. Check that the waterproof gasket is clean and undamaged. Attach the sensor to the tester by inserting hook “A” on the back of the device into hole “a” on the sensor tip. Make sure the waterproof gasket is not twisted. Important: After replacing the sensor, it is essential to follow the steps in the user manual of the respective tester to make the device ready for accurate measurements. (These manuals are available with the products. Calibration and, if necessary, conditioning are usually required.) How can I check if my sensor shows signs of wear? Check the sensor condition as follows: Perform a 2-point calibration. If an error occurs during calibration, this indicates that the sensor has deteriorated. In this case, replacing the sensor is recommended. Regular checks and timely replacement of sensors are essential to ensure the high standards and reliability of water quality measurements performed with HORIBA LAQUAtwin Pocket Testers. Manufacturer Part Nr. 3200597237

The HORIBA LAQUAtwin Pocket Tester series provides a comprehensive solution for immediate and precise measurement of water quality parameters directly in the field. To ensure these measurements remain reliable and accurate, it is essential to regularly check the sensors and, if necessary, replace them with spare sensors. The replacement sensors, specifically designed for the HORIBA LAQUAtwin series, cover a wide range of types for various measurements: pH, conductivity, salinity, redox (ORP), as well as ion-selective sensors for sodium, potassium, nitrate, calcium, and fluoride. Each sensor is engineered to maximize user-friendliness and accuracy, for which HORIBA is globally recognized in water quality testing. HORIBA replacement sensors ensure that users’ devices consistently deliver optimal performance and precise measurements. Advantages of HORIBA Replacement Sensors: Easy Replacement: Sensors can be quickly replaced, allowing measurements to continue without delay. High Accuracy: Replacement sensors ensure that results are exact and reliable. Comprehensive Measurement Range: Various sensor types are available to cover a wide range of water quality parameters. Durability: Sensors are designed for long service life under challenging conditions. Sensor Replacement Instructions: Follow these steps when replacing the sensor to maintain the longevity and accuracy of your HORIBA LAQUAtwin Pocket Tester: Removing the Sensor: Turn off the tester. Move the sensor slightly away from the device and lift the sensor tip. Detach the sensor completely from the tester. Installing the Sensor: Ensure the tester is turned off. Make sure the waterproof gasket is clean and intact. Mount the sensor onto the tester so that hook “A” on the back of the device fits into hole “a” on the sensor tip. Ensure the waterproof gasket is not twisted. Important: After replacing the sensor, follow the steps in the user manual of the respective tester to make the device ready for accurate measurement. (These manuals are available with the products. Calibration and, if necessary, conditioning are usually required.) How can I check if my sensor shows signs of wear? Check the sensor condition as follows: Perform a 2-point calibration. If an error occurs during calibration, this indicates that the sensor has deteriorated. In this case, it is advisable to replace the sensor. Regular checks and timely sensor replacement ensure that water quality measurements performed with the HORIBA LAQUAtwin Pocket Testers remain highly accurate and reliable. Manufacturer Part Nr. 3200997083

Manufacturer Part No. 3999960128 LAQUAtwin SALT-11 : The world's first pocket-sized salinity analyser. Your mobile laboratory - for use on site: Ideal for water quality testing in aquariums, food and many other applications. HORIBA's unique compact meter integrates electrode, display and sample container to enable simple, effective on-site testing by direct measurement with a single drop. Minimum sample volume: 0.12 ml Displays salinity and temperature Up to 2 calibration points Automatic calibration Automatic standard detection: 0.50 & 5.00 % NaCl Automatic temperature compensation: 2%/ºC fixed Temperature calibration: 5 to 40.0 ºC 2 salinity curves: NaCl & seawater Automatically stable / automatically maintained measurement Automatic switch-off: 30 min. Low battery indicator IP67 rating dust and waterproof Replaceable sensor 400 hours battery life: continuous operation without backlight Material: ABS epoxy housing and titanium coating with platinum black sensor Display: customised (monochrome) digital LCD with backlight Operating conditions: 5 to 40°C, 85% or less relative humidity Warranty: 2 years - meter, 6 months - sensor Packed in a practical carrying case Supplied with 0.5 % and 5.0 % NaCl standards (14 ml each), conditioning solution (4 ml), 2 x CR2032 batteries, pipette, instructions and short manual

Manufacturer Part No. 3200689158 LAQUAtwin SALT-22: The world's first pocket-sized salinity analyser. Your mobile laboratory - for use on site: Ideal for water quality testing in aquariums, food and many other applications. HORIBA's unique compact meter integrates electrode, display and sample container to enable simple, effective on-site testing by direct measurement with a single drop. Minimum sample volume: 0.3 ml (0.05 ml with sampling sheet B) Displays salinity, mV and temperature Up to 2 calibration points Automatic calibration Automatic standard detection: 0.5 & 5.0% NaCl (standard) Adjustable high and low calibration values Temperature calibration: 5 to 40.0 ºC Automatically stable / automatically held measurement Automatic switch-off: 30 min. Low battery indicator IP67 rating dust and waterproof Replaceable sensor 400 hours battery life: continuous operation without backlight Material: ABS epoxy Display: customised (monochrome) digital LCD with backlight Operating conditions: 5 to 40 ºC, 85% or less relative humidity Warranty: 2 years - meter; 6 months - sensor Packed in a practical carrying case Supplied with 0.5 % and 5.0 % NaCl standards (14 ml each), 5 x sampling sheet B, 2 x CR2032 batteries, pipette, instructions and short manual

Mobile Sodium Ion Tester from Horiba with Temperature Measurement – precise and robust High-precision sodium ion tester with 2-point calibration – ideal for water and environmental analysis The Horiba LAQUAtwin Na-11 sodium ion tester was specifically designed for accurate measurement of sodium concentrations in a wide range of samples. The device enables direct on-site measurements. Its clear display shows both the Na⁺ concentration and the sample temperature in a single step, making field, laboratory, and greenhouse work significantly more efficient. Mobile sodium ion tester for precise on-site measurements Featuring 2-point calibration and automatic standard recognition (150 and 2000 ppm), the instrument can be easily adapted to different measurement requirements. The integrated temperature display and automatic temperature compensation ensure accurate results even under fluctuating environmental conditions. The robust IP67 housing is dustproof and waterproof, making the tester suitable for demanding daily use. With a battery life of approximately 400 hours, reliable long-term operation is ensured. The tester is supplied with standard solutions, sampling sheets, batteries, and matching pipettes for immediate use. Why sodium measurement matters – and why a handheld tester is the ideal solution Measuring sodium ions plays a crucial role in water, environmental, food, and agricultural analysis. Excessively high or low sodium concentrations can significantly affect water quality, soil structure, plant growth, and the quality of food products and drinking water. Regulatory limits and quality standards further require regular monitoring. A mobile sodium ion handheld tester enables fast and precise analysis directly at the point of use, without time-consuming sampling or laboratory analysis. The Horiba LAQUAtwin Na-11 combines this flexibility with high measurement accuracy and ease of use, making it ideal for routine monitoring, quality control, and research applications. Typical applications for the Horiba sodium ion tester Environmental monitoring: Measurement of sodium concentrations in surface and groundwater to assess water quality and ensure compliance with environmental standards. Food and beverage production: Testing sodium levels in food and beverages for quality assurance, product development, and regulatory compliance. Agriculture: Monitoring sodium content in irrigation water and soils to support plant health and optimize water management. Research & development: Use in laboratories for experimental studies on sodium ion behavior under varying conditions. Education: Utilized in schools and universities to demonstrate the use of ion-selective electrodes in analytical chemistry.

Horiba 1000 mg/L sodium ion standard solution, 500ml Manufacturer article number: 3200987463 (500-NA-SH)

HORIBA Ion standard solutions, ionic strength controllers and ion-selective electrode filling solutions are indispensable for accurate and reproducible measurements with ion-selective electrodes (ISE). A large number of analyses in laboratories and in the field, such as testing water and wastewater quality, environmental monitoring and quality control in industrial processes, rely on these solutions. Ionic standard solutions are used to calibrate ion-selective electrodes and ensure precise measurement. Horiba's standard solutions have a known ion concentration. They are therefore essential for setting up the electrodes correctly before using them for test runs. Ionic strength controllers are specifically designed to adjust the ionic strength of the sample to enable accurate measurements. They are particularly important when the composition of the samples could affect the measurement or in samples with low ionic strength. The ionic strength can be adjusted to stabilize the ionic activity in the solution. This leads to more accurate measurement results. Ion-selective electrode filling solutionsIon-selective electrode filling solutions are specific solutions that are filled into ion-selective electrodes. They ensure the proper operation of the electrode and help to maintain the potential required to measure the specific ion. To ensure that measurements meet international standards and to ensure conformity with regulatory and compliance standards, these specialized solutions are essential. Many industries, from pharmaceutical to environmental, use these solutions to meet their quality and safety requirements. For users working in areas such as water analysis, environmental monitoring or regulatory testing environments, these solutions ensure the accuracy and reliability required for critical measurements. To provide reliable data for important environmental, health and safety decisions, they are a crucial part of analytical chemistry. Overall, HORIBA's solutions enable experts to make the best use of their instruments and achieve the precise results required for their applications. Manufacturer article number: 3200697181 (500-NO3-IFS)

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 ORP buffer solution for calibration of your ORP electrodes The 250 ml and 500 ml bottle is characterized by a special hygienic closure, which protects the ORP buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.

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 ORP buffer solution for calibration of your ORP electrodes The 250 ml and 500 ml bottle is characterized by a special hygienic closure, which protects the ORP buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.

HORIBA High quality ORP buffer solution for calibration of your ORP electrodesThe 250 ml and 500 ml bottle is characterized by a special hygienic closure, which protects the ORP buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration. Manufacturer article number: 1300045635 (500-ORP-475)

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 ORP buffer solution for calibration of your ORP electrodes The 250 ml and 500 ml bottle is characterized by a special hygienic closure, which protects the ORP buffer solution from contamination. To provide the required buffer, simply squeeze the bottle together and enough buffer solution is delivered to the upper part of the bottle to perform a calibration.

The original solution should be used as it is. For general use as standard solution sets, 101-S (100-4.7.9 and #310 internal solution) are also available. Manufacturer article number:3200043639 (100-2)

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.