60 years of HORIBA know-how have gone into the development of LAQUAtwin meters to bring you the highest quality technology that can be used anywhere, anytime. And they are so easy to use, you don't need any training! Calibrate and measure at the touch of a button - the smiley face lets you know when the result is ready to read.
Effortless automatic calibration with a few drops of standard solution gives you confidence that your measurements are accurate. Two-point calibration is also possible.
Horiba devices come with a 2-year warranty.
Feel free to take a look at the Horiba Pocket Tester in use: Pocket Tester Shop
Overview of possible applications of HORIBA products
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. 3200997084
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
The pH sensor 7112 is a high-quality original replacement part for the HORIBA U-50 series of multiparameter measuring devices. It enables precise and reliable pH measurements in a wide range of water quality applications – from environmental monitoring to industrial process control.Quick replacement – can be mounted on the U-50 probe unit without toolsDurable & robust – designed for use in harsh environmental conditions Manufacturer article number: 3014057312
Wash bottle for LAQUAtwin 4M setManufacturer article number: 3200774604
Horiba digital simulator X-51 pH, mV, ION, DO simulator (for periodic inspection of the electrode) X-51 Simulator gives theoretical equivalent input of electrodes for pH, mV, ion, and DO measuring instruments and checks linearity and temperature compensation functions of the instrument.The simulator makes equivalent voltage output for pH, mV, and ion, equivalent current output for DO (dissolved oxygen), and thermistor equivalent temperature resistance output for temperature.Manufacturer article number: 3014028368
Horiba X-52 Digital simulator X-52 Conductivity simulator (for periodic inspection of the electrode) X-52 Simulator gives theoretical equivalent input of electrodes for Conductivity measuring instruments and checks linearity and temperature compensation functions of the instrument. The simulator makes equivalent resistance output for conductivity and thermistor equivalent temperature resistance output for temperature. Manufacturer article number: 3014028370
Storage box for LAQUAtwin meters, solutions and accessories Manufacturer article number:3200685347 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.
This original ribbon set is specially designed for use in the Citizen CBM-910II-24RF-230-A printer (item number 895956), as used with HORIBA measuring devices, for example. It ensures clear, durable printouts and is ideal for use in laboratories, environmental analysis or field service. Manufacturer article number: 3014030150
Original spare part from HORIBA – guaranteed to fit the U-50 series perfectlyThe Horiba Reference Electrode Tip 7210 is a high-quality replacement part designed specifically for Horiba's U50 series of multiparameter measuring devices. It ensures a precise and stable reference voltage, which is essential for reliable measurement results in demanding environmental and water analyses. The electrode tip is easy to replace and helps to extend the service life of the entire system. Thanks to its robust design, it is ideal for use in harsh field conditions. With the 7210 reference electrode tip, your U50 measuring device will always be ready for use and perform at its best. Manufacturer article number: 3200043582
To ensure measurements remain reliable and accurate, it is important to regularly check the sensor and replace it with a spare sensor if necessary. The replacement sensor is specifically designed for the HORIBA LAQUAtwin Ca-11C for animal blood. This sensor is engineered to optimize user-friendliness and accuracy. With HORIBA replacement sensors, users can be confident that their devices consistently deliver optimal performance and precise results. 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 precise and reliable. Comprehensive Measurement Range: Various sensor types are available to measure a wide range of 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 intact. 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 tell if my sensor shows signs of wear? Check the sensor condition as follows: Perform a 2-point calibration to assess the sensor’s condition. 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 maintain the high standards and reliability of water quality measurements performed with HORIBA LAQUAtwin Pocket Testers. S051 Calcium replacement sensor for Ca-11C Manufacturer article number: 3200772945
This set contains the following pH solutions:1x pH 4.01 (60ml)1x pH 7.00 (60ml)1x pH 10.01 (60ml)Manufacturer article number: 3200820791
This set contains the following conductivity calibration solutions:1x 84 uS/cm (60 ml) 1x 1413 uS/cm (60 ml)1x 12.88 mS/cm (60 ml)1x 111.8 mS/cm (60 ml)Manufacturer article number: 3200820791