In the field of inorganic analysis, the corresponding measurement technology is also used in schools and universities, which is particularly suitable for training students. An outstanding example of this is the digital multi-parameter hand-held measuring instruments of the HORIBA WQ 300 series, which have been specially developed for checking water quality.
These devices make it possible to regularly check the water quality and to react quickly to potential problems, such as gastrointestinal diseases caused by contaminated water. Thanks to their ease of use, teachers, caretakers or hygiene officers can carry out the measurements independently. With precise results in real time, the hand-held measuring devices not only support safety and health in educational institutions, but also offer practical learning experiences for students.
By integrating the devices into science lessons, students learn to measure environmental parameters such as pH, conductivity or oxygen content and to understand their significance for the environment and health. At the same time, scientific skills, critical thinking and an awareness of environmental protection and sustainability are promoted.
The HORIBA WQ 300 series impresses with its user-friendliness, precision and versatility in the classroom. With these devices, students can learn how to apply the digital technology of the future in a practical way and recognize interdisciplinary connections in subjects such as biology, chemistry and geography.
HORIBA multi-parameter handheld meters for testing water quality in schools and universities
LAQUAtwin SALT-11: The world’s first pocket-sized salinity meter. Your mobile laboratory – for on-site use: Ideal for water quality testing in aquariums, foodstuffs and many other applications. HORIBAs unique compact meter integrates the electrode, display and sample vessel to enable simple, effective on-site testing via direct measurement with a single drop. Minimum sample volume: 0.12 ml Display of salinity and temperature Up to 2 calibration points Automatic calibration Automatic standard recognition: 0.50 & 5.00 % NaCl Automatic temperature compensation: 2%/°C fixed Temperature calibration: 5 to 40.0 °C 2 salinity curves: NaCl & seawater Automatic stable / hold measurement Automatic switch-off: 30 mins Low battery indicator IP67 rated dust and waterproof Replaceable sensor 400-hour battery life: continuous operation without backlight Material: ABS-epoxy housing and titanium coating with platinum-black sensor Display: custom (monochrome) digital LCD with backlight Operating conditions: 5 to 40°C, 85% or less relative humidity Warranty: 2 years – meter, 6 months – sensor Packaged in a handy carrying case Manufacturer’s item number: 3999960128 Supplied with 0.5% and 5.0% NaCl standards (14 ml each), conditioning solution (4 ml), 2 x CR2032 batteries, pipette, instructions and quick guide Additional information We would like to inform you of an upcoming product update for the LAQUAtwin pocket analysers. To enhance product safety and prevent infants and young children from accidentally swallowing the batteries, HORIBA will be introducing a new battery cover on all LAQUAtwin pocket-sized analysers. Overview of the product change Change: Battery cover for enhanced safety. Reason: To prevent accidental swallowing of batteries. Production date: from January 2026 in Japan Deliveries to EMEA distribution partners: from March 2026 As this change is currently being rolled out, mixed deliveries of the current and updated versions may occur during the transition phase. Please note: The salt exchange sensors, both old and new, are not compatible with each other. Similarly, the conditioning solutions for the old and new versions are not compatible with the respective device variants. How can you tell if you have an older or a new device? If your Pocket Tester is marked ‘4-cell’, you have the latest version of this device. In this case, you will need the replacement sensors listed in the cross-selling section, as well as the standard and conditioning solutions. These have been specially optimised for the new Pocket Testers and are not suitable for older models.
LAQUAtwin SALT-22: The world’s first pocket-sized salinity meter. Your mobile laboratory – for on-site use: Ideal for water quality testing in aquariums, foodstuffs and many other applications. HORIBAs unique compact meter integrates the electrode, display and sample chamber to enable simple, effective on-site testing through direct measurement with a single drop. Minimum sample volume: 0.3 ml (0.05 ml with sample sheet B) Display of salinity, mV and temperature Up to 2 calibration points Automatic calibration Automatic standard recognition: 0.5 & 5.0% NaCl (standard) Adjustable high and low calibration values Temperature calibration: 5 to 40.0 ºC Automatic stabilisation / automatic hold measurement Automatic switch-off: 30 mins Low battery indicator IP67 rated dust and waterproof Replaceable sensor 400-hour battery life: continuous operation without backlight Material: ABS-epoxy Display: custom (monochrome) digital LCD with backlight Operating conditions: 5 to 40 ºC, 85% or less relative humidity Warranty: 2 years – meter; 6 months – sensor Packaged in a handy carrying case Manufacturer’s item number: 3200689158 Supplied with 0.5% and 5.0% NaCl standards (14 ml each), 5 x Sample Form B, 2 x CR2032 batteries, pipette, instructions and quick guide Additional information We would like to inform you of an upcoming product update for the LAQUAtwin pocket meters. To enhance product safety and prevent infants and young children from accidentally swallowing the batteries, HORIBA will be introducing a new battery cover on all LAQUAtwin pocket-sized analysers. Overview of the product change Change: Battery cover for enhanced safety. Reason: To prevent accidental swallowing of batteries. Production date: from January 2026 in Japan Deliveries to EMEA distribution partners: from March 2026 As this change is currently being rolled out, mixed deliveries of the current and updated versions may occur during the transition phase. Please note: The salt exchange sensors, both old and new, are not compatible with each other. Similarly, the conditioning solutions for the old and new versions are not compatible with the respective device variants. How can you tell if you have an older or a new device? If your Pocket Tester is marked ‘4-cell’, you have the latest version of this device. In this case, you will need the replacement sensors listed in the cross-selling section, as well as the standard and conditioning solutions. These have been specially optimised for the new Pocket Testers and are not suitable for older models.
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. Additional information We would like to inform you of an upcoming product update for the LAQUAtwin handheld analysers. To enhance product safety and prevent infants and young children from accidentally swallowing the batteries, HORIBA will be introducing a new battery cover on all LAQUAtwin pocket-sized analysers. Overview of the product change Change: Battery cover for enhanced safety. Reason: To prevent accidental swallowing of batteries. Production date: From January 2026 in Japan Deliveries to EMEA distribution partners: From March 2026 As this change is currently being rolled out, mixed deliveries of the current and updated versions may occur during the transition period. Frequently asked questions How long is the warranty period for HORIBA pocket testers? The warranty period is two years from delivery for commercial customers. How many measurements can be taken before the sensor needs to be replaced? This varies depending on the application, use and storage of the Horiba tester. As a rule, the sensor should be replaced after one year. How long is the warranty period for replacement sensors for pocket testers? The warranty period is 12 months after delivery for commercial customers. How do you clean the pocket tester? The pocket tester can be rinsed under water. We recommend cleaning with DI water (deionised). Tissue paper is recommended for drying after cleaning. How can the pocket tester be reset to factory settings? (e.g. in the event of an incorrect measurement result) This information can be found in the operating instructions. These can be found in the download area of the shop and on the product. Is calibration necessary before each measurement? Basically, yes. Further information can be found in the operating instructions.
Horiba Y046 Sampling Sheet B Contains 100 pcs. / boxuse for minute samples (minimum of 0.05 ml) and particulate-containing samples (e.g., soil extract) for the latter, please use sampling sheet holder and cover the sensor during measurement for LAQUAtwin and Twin pocket meters, except conductivity and salt EC modelsManufacturer Part Nr. 3200053858
Horiba Y048 sample sheet holder for sample sheet B (sheet B is used for samples with particles)Manufacturer Part Nr. 3200459736
Der Milwaukee C65 Waterproof EC Pen bringt robuste Technik für präzise Leitfähigkeitsmessungen im niedrigen Bereich. Automatische Temperaturkompensation (ATC) sorgt für verlässliche Messergebnisse bei wechselnden Bedingungen. Dank wasserdichtem Gehäuse und austauschbarer Sonde ist das Gerät ideal für den Outdoor-Einsatz, Labor oder Messungen in feuchten Umgebungen.
Der Milwaukee C66 Waterproof EC Pen überzeugt durch Robustheit und hohe Messbereiche. Mit ATC und Austauschsonde liefert er auch bei extremen Bedingungen präzise Leitfähigkeitswerte. Ideales Werkzeug für Aquaristik, Industrie oder Feldarbeit – langlebig, zuverlässig und leicht zu bedienen.
Milwaukee CD600 TDS-Tester – misst zuverlässig die Konzentration gelöster Feststoffe (TDS). Kristallklare Anzeigen, einfache Handhabung. Zuverlässig für Wasserqualitätskontrolle, Umweltanalyse & Hydroponik. Kompakt, präzise, praxistauglich.
Milwaukee CD601 EC-Pen – handliches Leitfähigkeitstool für schnelle & verlässliche Messungen. Messbereich 0–1990 µS/cm, Auflösung 10 µS/cm, mit ATC (Automatische Temperaturkompensation); Genauigkeit ±2 % FS. Einfache 1-Punkt-Kalibrierung, robust, ideal für Aquarien, Wasseranalysen & Feldmessungssituationen.
Der Milwaukee CD610 ist ein präziser TDS-Tester für Anwendungen im hohen Messbereich. Er ermittelt zuverlässig die Konzentration gelöster Feststoffe (Total Dissolved Solids) im Wasser und eignet sich ideal für industrielle Umgebungen, Aquakultur, Landwirtschaft oder Wasseraufbereitung mit hohem Mineralgehalt. Das kompakte, handliche Design ermöglicht eine einfache Bedienung, während die robuste Bauweise für langlebige Einsatzfähigkeit sorgt. Dank seines weiten Messbereichs ist der CD610 die perfekte Wahl, wenn Standard-TDS-Tester an ihre Grenzen stoßen.
Milwaukee CD611 Leitfähigkeitstester – ideal für präzise Leitfähigkeitsmessung im mittleren bis hohen Bereich. Automatische Temperaturkompensation sorgt für verlässliche Resultate. Robust konstruiert und leicht bedienbar – perfekt für Labor oder Außeneinsatz.
Milwaukee CD97 TDS-Pen – spezialisiert auf niedrige Konzentrationen gelöster Feststoffe. Extrem feine Auflösung & Sensitivität, ideal für Reinwasser- & Laboranwendungen. Schnell, exakt und ideal für hohe Ansprüche an Genauigkeit.
Der EC59 von Milwaukee ist ein vielseitiger, wasserdichter Tester zur Messung von Leitfähigkeit (EC), gelösten Feststoffen (TDS) und Temperatur. Mit automatischer Temperaturkompensation und einer wechselbaren Sonde ausgestattet, eignet er sich für Anwendungen in Wasseraufbereitung, Aquakultur und Hydroponik. Seine robuste Bauweise und einfache Bedienung machen ihn zum zuverlässigen Begleiter im Alltag.
Das Milwaukee EC60 ist die ideale Lösung für Messungen mit hohem Leitfähigkeitsbereich. Es kombiniert EC-, TDS- und Temperaturmessungen in einem wasserdichten Gerät und bietet automatische Temperaturkompensation. Die austauschbare Sonde sorgt für lange Einsatzdauer. Optimal für industrielle Anwendungen oder Umgebungen, in denen besonders hohe Salz- oder Mineralgehalte zu messen sind.
The Total Chlorine powder reagent kit includes high-quality reagents that are ready-to-use with MW11 Total Chlorine Tester. The reagents use the DPD Method with a reaction between chlorine and reagent causing a pink tint in the sample. Simply add the reagent to the sample, wait for the reaction to take place and the photometer determines the concentration based on the color. The reagents are designed for use with samples that have an expected range of 0.00 to 3.50 ppm (mg/L) total chlorine.Total Chlorine powder reagent replacement kit (25 reagent sachets)Pre-made reagents for precision and ease of useMarked with expiration date and lot number for traceabilityFor use with the MW11 Tester
The MI527-25 IodinePowder reagent kit includes high-quality reagents that are ready-to-use with MW13. The MW34 meter and reagents use the DPD Method. The reaction between Iodineand the reagent causes a pink tint in the sample. Simply add the reagent to the sample, wait for the reaction to take place and the photometer determines the concentration based on the color. The reagents are designed for use with samples that have an expected range of 0.0 to 12.5 ppm (mg/L). Iodinepowder reagent replacement kit (25 tests) Pre-made reagents for precision and ease of use Marked with expiration date and lot number for traceability For use with the MW13 Tester
Chlorine is the most commonly used water disinfectant. Applications vary from treatment of drinking water and wastewater to pool and spa sanitization and food processing to sterilization.Key features include:- User friendly- Small & Ergonomic case design- Inexpensive- Large and easy to read display- Good accuracy and immediate resultsAccessories:- Mi526-25 Powder reagents for free chlorophotometer (25 pieces) (item no. 895551)- MI0011 (10ml) glass vials for handy photometer (2 pieces) (Art.-No. 895555)- MI0013 Plastic stopper caps for 10 ml glass cuvettes (2 pieces) (Art.-No. 895556)The handy photometers are supplied in a carton box with all accessories. Frequently asked questions How easy is the Milwaukee MW10 to use? Very easy – just add a water sample, press the button, and the result is displayed immediately. How accurately does the tester measure the chlorine level? The tester provides reliable and precise readings for everyday use, e.g. in swimming pool water. Do I need any additional accessories for the measurement? Yes, reagents are required, but they are easy to buy and simple to use. How long does a measurement take, roughly? You will usually get the result in less than a minute. Is the device suitable for beginners? Absolutely; even without prior knowledge, you’ll get the hang of it quickly. How often do I need to maintain or clean the tester? Only occasionally – simply rinse with clean water after use.
The Milwaukee MW100 PRO pH meter features manual calibration and fast operation in a rugged design.It is ideal for users in pools, and hydroponic applications. This meter is also ideal for educators that want their students to learn the basics of pH meter calibration before going fully automatic.Design featuresFast easy to read results with large digital LCD readoutAccurate to ±0.2 pH with a 0.0-14.0 pH rangeLightweight, ergonomic and portableEasy measurement: just place the probe in the sample, gently stir and wait for the reading to stabilizeSimple manual two-point calibration for increased accuracyGel-filled, double junction lab grade pH electrode for low maintenance and high performance with a screw on cap to ensure proper storage (SE220 probe included)3 feet probe cables for extra flexibility when testingLow battery indicatorBattery life of approx. 300 hours of continuous use (battery included)
It is a microprocessor-controlled pH/temperature meter with extended measuring range (-2.00 to 16.00 pH), automatic temperature compensation, automatic calibration in 2 points and an accuracy of ± 0.02 pH.Design featuresFast, easy-to-read results with large digital LCD displayExtreme accuracy to ±0.02 pH and extended range (-2.00 pH to 16.00 pH)Lightweight and portableEasy measurement: simply insert the probe into the sample, stir gently and wait for the reading to stabiliseSimple push-button, automatic two-point calibration for increased accuracyDouble-junction, laboratory-grade gel-filled pH electrode for low maintenance and high performance, with screw cap for proper storageRobust stainless steel temperature probe3-foot probe cable for added testing flexibilityAutomatic shut-off and low power consumption for approx. 300 hours of continuous operation (battery included)
Chlorine is the most commonly used water disinfectant. Applications vary from treatment of drinking water and wastewater to pool and spa sanitization and food processing to sterilization. Key features include: - User friendly - Small & Ergonomic case design - Inexpensive - Large and easy to read display - Good accuracy and immediate results Accessories: - Mi524-25 Powder reagents for total chlorine photometer (25 pieces) (art. no. 895552) - MI0011 (10ml) glass vials for handy photometer (2 pieces) (Art.-No. 895555) - MI0013 Plastic stopper caps for 10 ml glass cuvettes (2 pieces) (Art.-No. 895556) The handy photometers are supplied in a carton box with all accessories. Frequently asked questions What exactly does the Milwaukee MW11 measure? It measures the total chlorine level in the water, i.e. free and combined chlorine together. Is the tester suitable for my pool? Yes, it is ideal for swimming pools, hot tubs and also for testing tap water. How quickly do I get a reading? It usually takes only about 1 minute for the result to appear. Do I need to do a lot of setting up or preparation? No, it is simple to use and easy to understand. Do I need any extra accessories to use it? Yes, suitable reagents are required and can be easily reordered. How do I look after the device properly? Rinse it briefly after use, and it will remain reliable for a long time.
Iodine is used as disinfectant in various applications - one of the most common is the poultry industry waste water treatment. Key features include: - User friendly - Small & Ergonomic case design - Inexpensive - Large and easy to read display - Good accuracy and immediate results Accessories: - MI527-25 Powder reagents for iodine photometer (25 pieces) (item no. 895553) - MI0011 (10ml) glass cuvettes for handy photometer (2 pieces) (Art.-No. 895555) - MI0013 Plastic stopper caps for 10 ml glass cuvettes (2 pieces) (Art.-No. 895556) The handy photometers are supplied in a carton box with all accessories. Frequently asked questions What exactly does the Milwaukee MW13 measure? It measures the iodine content in water quickly and reliably. Is it complicated to use? No, just add a water sample, add the reagent, press the button – that’s it. How quickly do I get a result? You’ll usually see the reading within a minute. Do I need anything else to take a measurement? Yes, suitable reagents are required and readily available. Can I use the tester even without any experience? Yes, it’s simple in design and easy to understand. How do I keep the tester in good working order for a long time? Clean it briefly after each use and store it in a dry place.
Frequently asked questions Why do I need a pH tester in the first place? It’s used to measure whether the water is more acidic or more alkaline. Is the device suitable for beginners? Yes. Simply switch it on, dip it in the water and read the result straight away. How quickly do I get a result? You can see the current pH value on the display in a few seconds. How accurate is a pH tester in everyday use? The readings are reliable and help you keep a close eye on the quality of the water. Can I use the device for different types of water? Yes, for example for drinking water, aquariums or watering plants.
Frequently asked questions Why do I need a pH tester in the first place? It’s used to measure whether the water is more acidic or more alkaline. Is the device suitable for beginners? Yes. Simply switch it on, dip it in the water and read the result straight away. How quickly do I get a result? You can see the current pH value on the display in a few seconds. How accurate is a pH tester in everyday use? The readings are reliable and help you keep a close eye on the quality of the water. Can I use the device for different types of water? Yes, for example for drinking water, aquariums or watering plants.
Das Milwaukee PH55 ist ein wasserdichtes, kompaktes Messgerät für pH und Temperatur. Mit automatischer Temperaturkompensation und einer austauschbaren Sonde liefert es schnelle und präzise Messergebnisse im Bereich 0,00–14,00 pH. Dank seiner robusten Bauweise ist es ideal für den Einsatz in Aquaristik, Hydroponik oder Umweltkontrolle. Die einfache Zwei-Punkt-Kalibrierung sorgt für zuverlässige Ergebnisse auch im professionellen Umfeld.