The Horiba 9652-10D pH electrode with double diaphragm is a durable, gel-filled glass electrode in a robust plastic housing, specially developed for mobile use with handheld measuring devices from the LAQUA 200 series. It covers a measuring range from 0 to 14 pH and guarantees reliable results in a temperature range from 0 to 80 °C. The combination of a double diaphragm (double junction) and a porous, sintered polyethylene contact ensures stable measuring performance even under demanding conditions. An integrated temperature sensor enables accurate, temperature-compensated pH measurements. Thanks to its gel filling, the electrode is virtually maintenance-free and does not require refilling of the electrolyte solution.  Manufacturer item number: 3200786359

The Horiba 9652-20D pH electrode with double diaphragm is a gel-filled pH glass electrode in a robust plastic housing, ideal for outdoor use in conjunction with handheld measuring devices from the LAQUA 200 series. It offers a measuring range from 0 to 14 pH and works reliably in a temperature range from 0 to 80 °C. Thanks to the double diaphragm (double junction) and the porous, sintered polyethylene liquid contact, it ensures high measurement stability. An integrated temperature sensor ensures precise, temperature-compensated measurements. The electrode is low-maintenance as it is gel-filled and does not need to be refilled. Manufacturer Part Nr. 3200786361

Manufacturer number: 3200585455This refillable pH electrode with integrated temperature sensor is ideal for testing samples in large containers and long test tubes (e.g., microbial culture fluids) due to its long, thin, glass-body.Electrode: 251mm length, 7mm diameterConstructed with responsive glass that is 10x stronger than JIS standardsWaterproof, Pb-free glass

Manufacturer number: 3200585463pH electrode with integrated temperature sensor for stable measurements of highly viscous samples. The saline bridge part is equipped with a movable sleeve that can be easily cleaned to prevent viscous samples from clogging the saline bridge and to keep measurements stable and accurate.Rapid stabilisation and reduction of aeronauticsToupH electrodes use sensitive glass, reducing the risk of damageWaterproof (IP-67), pb-free glassWhen measuring samples with high viscosity or non-aqueous solutions (e.g. paints or cosmetics), we recommend using the instrument's chart function to ensure stability.

The Horiba LAQUA 300 BNC adapter is designed to act as an adapter for connecting an ion-selective electrode to the corresponding Smart Sensor module, which is fitted with a cable for connection to a HORIBA Laqua 300 series analyser. HORIBA BNC Adapter 300-BNC – Maximum flexibility for your HORIBA Laqua WQ300 analysers The HORIBA BNC Adapter 300-BNC is the ideal solution if you wish to flexibly expand your HORIBA Laqua WQ300 analysers and easily connect a wide variety of electrodes for immediate use. Whether in the laboratory, in water analysis or in industrial quality control – with this adapter, you can create a universal connection between the measuring instrument and the electrode, significantly expanding the range of applications for your measurement technology. Universal compatibility – Greater freedom in electrode selection With the HORIBA 300-BNC Adapter, you are no longer restricted to manufacturer-specific sensors. The adapter stands out because it can connect not only HORIBA-specific electrodes but also electrodes from other manufacturers, provided they have a BNC connector. The inclusion of a second input in the form of a RCA connector also enables the transmission of temperature data, supporting temperature-compensated measurement and display. Compatibility includes: 3-in-1 / combination pH electrodes and the pH sensor heads 300PH-2 / 300PH-5 3-in-1 / combination ORP electrodes and the ORP sensor head 300-O-2 Combination ion-selective electrodes (ISEs) and the ion sensor head 300-I-2 Thanks to an additional phono/RCA connector, temperature data can also be transmitted – for precise, temperature-compensated measurements. Which Horiba ion-selective electrodes is the adapter compatible with? 895882 Horiba 6560S-10C, chloride ion (Cl-) electrode 895883 Horiba 6561S-10C, fluoride ion (F-) electrode 895880 Horiba 5002S-10C, Ammonia (NH3) ion electrode with 3x membrane cap Your benefits at a glance Extended measurement capabilities: Use a wide variety of electrodes and measure a multitude of parameters – from pH and redox to specific ions. Manufacturer-independent flexibility: Choose the best electrode for your application – regardless of the manufacturer. Precise measurement results: Thanks to temperature compensation, you obtain reliable and reproducible results, even under changing conditions. Easy to use: The adapter allows electrodes to be connected quickly and easily to the WQ300 series measuring instruments. This saves time and optimises use in the laboratory and in the field. Quick connection, secure fit and ready for immediate use – ideal for laboratory and field use. Typical applications The HORIBA BNC Adapter 300-BNC is perfect for: Water analysis & environmental monitoring Research & development laboratories Food and beverage industry Chemical and pharmaceutical industry Quality assurance & production control Whether you are measuring pH values, determining redox potentials or analysing ion concentrations – this adapter turns your measuring instrument into a universal analysis platform. It is particularly useful for users who need a flexible solution to carry out a wide range of measurements with their existing HORIBA WQ300 measuring instruments. The 300-BNC adapter significantly expands the range of applications for the WQ300 series and enables cross-manufacturer compatibility in the field of electrochemical measurements. Why buy the HORIBA 300-BNC adapter? If you already own a HORIBA Laqua WQ300 meter, this adapter is an essential accessory for: continuing to use your existing electrodes saving on the cost of new sensor systems significantly expanding your measurement capabilities The HORIBA 300-BNC adapter transforms your HORIBA Laqua WQ300 series analysers into an open and flexible measurement system for a wide range of applications. Benefit from maximum compatibility, precise measurement results and easy integration into existing measurement processes.

300-2C2C, 2-cell conductivity sensor cartridge, stainless steel, K=0.1 0.01 to 500µS/cm to 2000 mS/cmManufacturer article number: 3200820579

300-4C-C, 4 cell conductivity sensor cartridge, epoxy, carbon body, 10µS/cm to 2000 mS/cmManufacturer article number: 3200780928

Conductivity/TDS/resistivity/salinity cable with digital sensor head to mount the conductivity sensors of type "300-2C2C" and "300-4C-C". Manufacturer Part Nr. :  3200784468 (2 metres 300-C-2) 3200812202 (5 metres 300-C-5)

Optical dissolved oxygen sensor with hard moulded 2m or 5m cable including a membrane cap. Manufacturer Part Nr.  3200780940 (2 metres = 300-D-2)  3200780942 (5 metres = 300-D-5)

Optical dissolved oxygen sensor with hard moulded 2m or 5m cable including a membrane cap. Manufacturer Part Nr.  3200780940 (2 metres = 300-D-2)  3200780942 (5 metres = 300-D-5)

Cable with digital sensor head to accommodate the ion selective sensors.   Manufacturer Part Nr. :3200812203 (2 metres 300-I-2)    3200923560 (5 metres 300-I-5) Note: To use the ion selective sensors, the respective adapters are required.

Cable with digital sensor head to accommodate the ion selective sensors.   Manufacturer Part Nr. :3200812203 (2 metres 300-I-2)    3200923560 (5 metres 300-I-5) Note: To use the ion selective sensors, the respective adapters are required.

ORP cable with digital sensor head to mount the "300-O-C ORP electrode".  Manufacturer Part Nr. :   3200812204 (2 metres 300-O-2)  3200923561 (5 metres 300-O-5)

300-O-C ORP sensor cartridge Manufacturer article number: 3200922104

300-P-C pH sensor cartridgeManufacturer article number: 3200786363

pH cable with digital sensor head to mount the "300-P-C pH electrode". Manufacturer Part Nr. :  3200812206 (2 metres 300-PH-2) 3200812207 (5 metres 300-PH-5)

Thank you for your interest in our smart and individually configurable measuring instruments of the HORIBA LAQUA WQ-300 series. The high-quality digital multi-parameter handheld meters feature a large colour LCD display with LED backlight (7 cm x 5.2 cm), making them ideally suited for field use under a wide range of conditions and in direct daylight. Use our configurator to select the appropriate measuring instrument from the HORIBA WQ-300 series with 1 to 3 measuring channels, the desired measuring parameters (sensor cartridges) and the required cable length according to your individual needs. The sensor cables feature an integrated sensor receptacle and digital module. Additional measuring parameters can also be connected at a later stage using the corresponding sensor cable or carried in the measuring case as supplementary equipment. As with other HORIBA handheld meters, the devices are particularly resistant to shocks, slipping and scratches thanks to their special rubber coating. Operation requires four standard AA batteries with 2500 mAh. For greater flexibility during mobile use, the WQ-300 series can alternatively be powered by a power bank or battery pack via the integrated USB interface. An IP67 certification, which confirms dust-tightness and protection against temporary immersion for up to 30 minutes at a water depth of one metre, completes the professional overall package alongside the ergonomic design and easy operation. HORIBA offers a three-year warranty on the handheld measuring instruments of the LAQUA WQ-300 series. Functions and Features During measurements, users are supported by operating instructions displayed in the form of smiley symbols. These are complemented by an LED status indicator on the sensor to help prevent operating errors and implausible measurement results. The small number of control buttons and the absence of complex, nested menus ensure that the instruments remain easy and safe to operate, even when used intermittently or by different users. Additional Functions Electrode wear indicator Measurement stability indicator on the instrument and sensor Hold function to "save" the current measured value on the display Individual measuring point identification with up to 8 characters Automatic calibration functions Integrated sensor holders Self-diagnostic function GLP functions Fold-out stand for convenient hands-free measurements Transfer of measurement data to a computer or smartphone via USB or WiFi Measuring Case for Mobile Use All handheld meters of the WQ-300 series are supplied in a reinforced measuring case for mobile outdoor use. The case provides space for the measuring instrument, electrodes and cables, as well as up to eight 60 ml bottles of buffer solutions. An integrated holder for buffer solution bottles facilitates calibration. Automatic Sensor Recognition A particular advantage of the WQ-300 series is automatic sensor recognition through sensor cables with integrated digital sensor receptacles. Information about the sensor, calibration data and measurement settings is stored in the digital sensor module and transmitted to the measuring instrument. In addition, all connected sensors can be calibrated simultaneously, as each sensor module independently stores measurement and calibration data and transmits them to the WQ-300 series measuring instrument. Analogue sensors can optionally be connected using the HORIBA BNC sensor adapter. Please contact us for further information. Available Languages German English French Spanish Portuguese Chinese Scope of Delivery WQ-300 series handheld meter in a carrying case Selected digital electrode, if applicable, and the corresponding sensor-specific cable with integrated digital sensor receptacle Instruction manual Manufacturer Article Number WQ-310-K (1 channel): 3200832605 Calibrating the Instrument pH Measurement To obtain accurate results, a two-point calibration must be carried out. The following buffer solutions are recommended: pH 7.00 and 4.01 for acidic samples pH 7.00 and 10.01 for alkaline samples If the expected pH value of the sample is unknown, a three-point calibration using pH 7.00, 4.01 and 10.01 is recommended. It is recommended to begin calibration with pH 7.00. Conductivity Measurement For conductivity measurements, a single-point calibration is sufficient, for example at 1413 µS/cm. For greater accuracy, a multi-point calibration can also be performed. Important Note on the Chloride Sensor Note: If a chloride sensor is selected, it is supplied without chloride ionic strength adjuster and chloride electrode filling solution. These solutions must be purchased separately by the customer. The chloride sensor cannot be used without the required filling solution. Why We Use These Measuring Devices in Water Treatment Precise calcium control is an important element of efficient water treatment, from drinking water purification and process water management to environmental analysis. Elevated calcium concentrations can contribute to scale formation, pipe damage, increased energy consumption and disruptions in chemical processes. For these applications, we offer configurable solutions from the HORIBA LAQUA WQ series in our online shop. Available Measuring Instruments WQ310-K: Single-channel solution for targeted measurements. WQ320-K: Simultaneous measurement of two parameters, such as calcium and conductivity. WQ330-K: Three-channel measurement for complex multi-parameter analyses. Benefits for Water Treatment Reliable measurement data for monitoring and optimising water treatment systems. Digital evaluation, documented measurement results and interfaces for data transfer. Robust design and practical measuring case for mobile on-site use. Flexible combination of calcium measurements with other parameters such as pH, conductivity or redox potential. Note on Scope of Delivery: From November 2026, HORIBA products will be supplied without batteries. Existing stock may still include batteries. Batteries are no longer included with newly manufactured products and must be purchased separately if required.

Thank you for your interest in our smart and individually configurable measuring instruments of the HORIBA LAQUA WQ-300 series. The high-quality digital multi-parameter handheld meters feature a large colour LCD display with LED backlight (7 cm x 5.2 cm), making them ideally suited for field use under a wide range of conditions and in direct daylight. Use our configurator to select the appropriate measuring instrument from the HORIBA WQ-300 series with 1 to 3 measuring channels, the desired measuring parameters (sensor cartridges) and the required cable length according to your individual needs. The sensor cables feature an integrated sensor receptacle and digital module. Additional measuring parameters can also be connected at a later stage using the corresponding sensor cable or carried in the measuring case as supplementary equipment. As with other HORIBA handheld meters, the devices are particularly resistant to shocks, slipping and scratches thanks to their special rubber coating. Operation requires four standard AA batteries with 2500 mAh. For greater flexibility during mobile use, the WQ-300 series can alternatively be powered by a power bank or battery pack via the integrated USB interface. An IP67 certification, which confirms dust-tightness and protection against temporary immersion for up to 30 minutes at a water depth of one metre, completes the professional overall package alongside the ergonomic design and easy operation. HORIBA offers a three-year warranty on the handheld measuring instruments of the LAQUA WQ-300 series. Functions and Features During measurements, users are supported by operating instructions displayed in the form of smiley symbols. These are complemented by an LED status indicator on the sensor to help prevent operating errors and implausible measurement results. The small number of control buttons and the absence of complex, nested menus ensure that the instruments remain easy and safe to operate, even when used intermittently or by different users. Additional Functions Electrode wear indicator Measurement stability indicator on the instrument and sensor Hold function to "save" the current measured value on the display Individual measuring point identification with up to 8 characters Automatic calibration functions Integrated sensor holders Self-diagnostic function GLP functions Fold-out stand for convenient hands-free measurements Transfer of measurement data to a computer or smartphone via USB or WiFi Measuring Case for Mobile Use All handheld meters of the WQ-300 series are supplied in a reinforced measuring case for mobile outdoor use. The case provides space for the measuring instrument, electrodes and cables, as well as up to eight 60 ml bottles of buffer solutions. An integrated holder for buffer solution bottles facilitates calibration. Automatic Sensor Recognition A particular advantage of the WQ-300 series is automatic sensor recognition through sensor cables with integrated digital sensor receptacles. Information about the sensor, calibration data and measurement settings is stored in the digital sensor module and transmitted to the measuring instrument. In addition, all connected sensors can be calibrated simultaneously, as each sensor module independently stores measurement and calibration data and transmits them to the WQ-300 series measuring instrument. Analogue sensors can optionally be connected using the HORIBA BNC sensor adapter. Please contact us for further information. Available Languages German English French Spanish Portuguese Chinese Scope of Delivery WQ-300 series handheld meter in a carrying case Selected digital electrode, if applicable, and the corresponding sensor-specific cable with integrated digital sensor receptacle Instruction manual Manufacturer Article Number WQ-320-K (2 channels): 3200832606 Calibrating the Instrument pH Measurement To obtain accurate results, a two-point calibration must be carried out. The following buffer solutions are recommended: pH 7.00 and 4.01 for acidic samples pH 7.00 and 10.01 for alkaline samples If the expected pH value of the sample is unknown, a three-point calibration using pH 7.00, 4.01 and 10.01 is recommended. It is recommended to begin calibration with pH 7.00. Conductivity Measurement For conductivity measurements, a single-point calibration is sufficient, for example at 1413 µS/cm. For greater accuracy, a multi-point calibration can also be performed. Important Note on the Chloride Sensor Note: If a chloride sensor is selected, it is supplied without chloride ionic strength adjuster and chloride electrode filling solution. These solutions must be purchased separately by the customer. The chloride sensor cannot be used without the required filling solution. Note on Scope of Delivery: From November 2026, HORIBA products will be supplied without batteries. Existing stock may still include batteries. Batteries are no longer included with newly manufactured products and must be purchased separately if required.

Horiba WQ330-K – Your Professional 3-Channel Water Quality Meter Expandable multi-parameter system for simultaneous measurement of pH, conductivity, redox, and other water parameters The Horiba LAQUA WQ330-K is a powerful multi-channel device for advanced water analysis, both on-site and in the laboratory. With three freely configurable measurement channels, it can simultaneously record parameters such as pH, conductivity, redox potential, TDS, temperature, oxygen, ammonia, calcium, chloride, nitrate, fluoride, and potassium. Intuitive operation, automatic sensor recognition, and digital calibration ensure accurate, fast, and reproducible measurements. Flexible Multi-Parameter System for Field and Laboratory Applications The analysis kit with the Horiba WQ330-K is ideal for environmental and water body monitoring, research and teaching, as well as drinking and process water control. The large LCD display with LED backlight ensures excellent readability even in direct sunlight. Measurement data can be exported and documented via USB or wirelessly, greatly simplifying traceability and analysis. The modular system allows the device to be quickly and precisely adapted to any measurement task. It is ideal for users who need to efficiently and reliably monitor multiple water parameters. Technical Features and Key Advantages of the WQ330-K The three measurement channels of the Horiba WQ330-K enable simultaneous recording of different water parameters, reducing measurement time and allowing better evaluation of relationships between parameters. The modular sensor concept allows flexible use of digital sensors, which are automatically recognized and store their calibration history. Notably, the combination of high measurement precision, user-friendliness, and mobility makes this device stand out. Quick deployment without complicated setup, along with easy data transfer for documentation and analysis, makes the Horiba LAQUA WQ330-K an ideal solution for professional water analytics. Calibrating the instrument: pH measurement To obtain accurate results, a two-point calibration must be carried out. It is recommended that the following solutions be used: pH 7.00 and 4.01 for acidic samples pH 7.00 and 10.01 for alkaline samples Carry out a three-point calibration using pH 7.00, 4.01 and 10.01 if you do not know the expected pH value of the sample. It is recommended that you calibrate using pH 7.00 first. Conductivity measurement For a conductivity measurement, a single-point calibration is sufficient, for example at 1413 μS/cm. For greater accuracy, a multi-point calibration can also be carried out. Note: During the promotional period, the discount on accessories will be automatically deducted at the shop’s checkout when purchased together with the HORIBA WQ330 device. Note on Scope of Delivery: From November 2026, HORIBA products will be supplied without batteries. Existing stock may still include batteries. Batteries are no longer included with newly manufactured products and must be purchased separately if required. Frequently asked questions How long is the warranty period for HORIBA analysers? The warranty period is 2 years for the 300 (WQ) series and 1 year for the F series after delivery. Where can I find suitable replacement electrodes or buffer solutions? You can find the appropriate replacement electrodes and buffer solutions in the shop under the main item at the bottom of the cross-selling section. How do I clean the probe before calibration? The sensors should be cleaned with DI water (deionised). After cleaning, wipe them with tissue paper if possible. Frequently asked questions about the promotion How long does the promotion run for? The promotion runs from 1 September 2026 to 31 December 2026. How do I get the discount on the accessories? The discount will be automatically deducted at the shop’s checkout when you purchase the HORIBA WQ330 unit at the same time.