Very durable minimum alkali errors. Most widely used for general pH measurements. Manufacturer article number:3014080432 (1066A-10C)

Uses a glass membrane highly sensitive to lowconductivity water and nonaqueous solvents. Can also be used for ordinary pH measurement. Manufacturer article number: 3014093084 (1076A-10C)

Suitable for a wide range of pH measurements since the resistance of the liquid junciton is small. Manufacturer article number: 3014080434 (2060A-10T)

Suitable for measurements of liquid other than normal aqueous solutions, such as suspensions, emulsions, paste, and non-aqueous solutions. When the potassium chloride solution of the internal solution reacts with the sample, measurements can be stably carried out by filling the sample or any other chloride solution in the external jacket. The replacement of the internal solution and the cleaning of the liquid junction can be carried out easily. Manufacturer article number: 3014080436 (2565A-10T)

Calcium (Ca2+) ion-selective electrode for 300 seriesThe new electrode is suitable for the LAQUA WQ-300 series from Horiba and offers precise and reliable measurements for ions in aqueous solutions. It is characterised by its user-friendly handling and environmentally friendly design and can be used for a wide range of applications.Linearity in measurement range:The range where the calibration curve has linearity is called the measurement range. When lower concentration is measured where the linearity is not established, perform calibration at two points in the lower concentration range.Below graph shows the theoretical calibration curve of a calcium ion selective electrode.Influence of pH:The impact of the pH may cause a decrease in the slope of the ion selective electrode, or parallel shifting of the calibration curve. To prevent these effects, set the pH to an appropriate value in advance and keep it constant.Interfering ions:Ion selective electrodes have good selectivity with respect to the ions to be measured, but they may react to the other ions. When using the ion electrode method, it is important to know the effects of coexistent ions and take measures to avoid them. Interfering ions may form compounds with poor solubility or may form complex salts with the structure material of the ion selective membrane, these may to have a significant impact on the measured value.Conditioning:An electrode is conditioned by soaking it in a standard solution for 1 hour or longer. Use a standard solution whose concentration is 100 mg/L or more.In the following cases, perform conditioning of the electrode before calibration.• Before the first use.• Before use after storage for 2 weeks or longer.• If the electrode is less responsive.Calibration:Always calibrate with at least 2 calibration solutions which are 1 decade apart and bracket the expected measurement value.Use fresh calibration solutions and do not re-use them.• Below 10 ppm (mg/L)First solution between 1 and 10ppmSecond solution between 10 and 50 ppm• Between 10 and 100 ppm (mg/L)First solution between 10 and 100ppmSecond solution between 100 and 1000 ppm• Above 100 ppm (mg/L)First solution between 100 and 1000ppmFurther information can be found in the download area of the store. Manufacturer article number: 3200986786 (300-CA-C)

Potassium (K+) ion-selective electrode for 300 series The new electrode is suitable for the LAQUA WQ-300 series from Horiba and offers precise and reliable measurements for ions in aqueous solutions. It is characterised by its user-friendly handling and environmentally friendly design and can be used for a wide range of applications.Features:Measurement parameters: Potassium (K+) Solid-state electrodes that do not require refilling Double junction made of porous sintered polyethylene Integrated temperature sensor Environmentally friendly design made from bio-based plastic Supplied with calibration and ionic strength adjustment solutions Robust housing made of polycarbonate and PVC Low maintenance, simply rinse and seal Waterproof according to IP67Linearity in measurement range:The range where the calibration curve has linearity is called the measurement range. When lower concentration is measured where the linearity is not established, perform calibration at two points in the lower concentration range.Influence of pH:The impact of the pH may cause a decrease in the slope of the ion selective electrode, or parallel shifting of the calibration curve. To prevent these effects, set the pH to an appropriate value in advance and keep it constant.→Set the pH to an appropriate value in advance and keep it constant.If the pH of the sample solution exceeds 11, adjust the pH in the range of 5 to 11 by adding hydrochloric acid HCl.If the pH of the sample solution is less than 5, adjust the pH in the range of 5 to 11 by adding sodium hydroxide NaOH.Interfering ions:Ion selective electrodes have good selectivity with respect to the ions to be measured, but they may react to the other ions. When using the ion electrode method, it is important to know the effects of coexistent ions and take measures to avoid them. Interfering ions may form compounds with poor solubility or may form complex salts with the structure material of the ion selective membrane, these may to have a significant impact on the measured value. Conditioning:An electrode is conditioned by soaking it in a standard solution for 1 hour or longer. Use a standard solution whose concentration is 100 mg/L or more.In the following cases, perform conditioning of the electrode before calibration.• Before the first use.• Before use after storage for 2 weeks or longer.• If the electrode is less responsive.Calibration:Always calibrate with at least 2 calibration solutions which are 1 decade apart and bracket the expected measurement value.Use fresh calibration solutions and do not re-use them.• Below 10 ppm (mg/L)First solution between 1 and 10ppmSecond solution between 10 and 50 ppm• Between 10 and 100 ppm (mg/L)First solution between 10 and 100ppmSecond solution between 100 and 1000 ppm• Above 100 ppm (mg/L)First solution between 100 and 1000ppmSecond solution above 1000 ppmFurther information can be found in the data sheets in the download area of the store. Manufacturer article number: 3200986785 (300-K-C)

Sodium (Na+) ion-selective electrode for 300 seriesThe new electrode is suitable for the LAQUA WQ-300 series from Horiba and offers precise and reliable measurements for ions in aqueous solutions. It is characterized by its user-friendly handling and environmentally friendly design and is versatile in use.  Features:Measurement parameters: Sodium (Na+)Solid-state electrodes that do not require refillingDouble junction made of porous sintered polyethyleneIntegrated temperature sensorEnvironmentally friendly design made from bio-based plasticDelivery includes calibration and ionic strength adjustment solutionsRobust housing made of polycarbonate and PVCLow maintenance, simply rinse and sealWaterproof according to IP67Linearity in measurement range:The range where the calibration curve has linearity is called the measurement range. When lower concentration is measured where the linearity is not established, perform calibration at two points in the lower concentration range.Influence of pH:The impact of the pH may cause a decrease in the slope of the ion selective electrode, or parallel shifting of the calibration curve. To prevent these effects, set the pH to an appropriate value in advance and keep it constant.→Set the pH to an appropriate value in advance and keep it constant.If the pH of the sample solution exceeds 10, adjust the pH in the range of 5 to 10 by adding hydrochloric acid HCl.If the pH of the sample solution is less than 5, adjust the pH in the range of 5 to 10 by adding sodium hydroxide NaOH.Interfering ions:Ion selective electrodes have good selectivity with respect to the ions to be measured, but they may react to the other ions. When using the ion electrode method, it is important to know the effects of coexistent ions and take measures to avoid them. Interfering ions may form compounds with poor solubility or may form complex salts with the structure material of the ion selective membrane, these may to have a significant impact on the measured value. Conditioning:An electrode is conditioned by soaking it in a standard solution for 1 hour or longer. Use a standard solution whose concentration is 100 mg/L or more.In the following cases, perform conditioning of the electrode before calibration.• Before the first use.• Before use after storage for 2 weeks or longer.• If the electrode is less responsive.Calibration:Always calibrate with at least 2 calibration solutions which are 1 decade apart and bracket the expected measurement value.Use fresh calibration solutions and do not re-use them.• Below 10 ppm (mg/L)First solution between 1 and 10ppmSecond solution between 10 and 50 ppm• Between 10 and 100 ppm (mg/L)First solution between 10 and 100ppmSecond solution between 100 and 1000 ppm• Above 100 ppm (mg/L)First solution between 100 and 1000ppmSecond solution above 1000 ppmFurther documentation can be found in the download area of our store Manufacturer article number: 3200986787 (300-NA-C)

Ammonium (NH4+) ion-selective electrode for 300 seriesThe new electrode is suitable for the LAQUA WQ-300 series from Horiba and offers precise and reliable measurements for ions in aqueous solutions. It is characterized by its user-friendly handling and environmentally friendly design and is versatile in useFeatures:Measurement parameters: Ammonium solid-state electrodes that do not require refillingDouble junction made of porous sintered polyethyleneIntegrated temperature sensorEnvironmentally friendly design made from bio-based plasticSupplied with calibration and ionic strength adjustment solutionsRobust housing made of polycarbonate and PVCLow maintenance, simply rinse and seal Waterproof according to IP67Linearity in the measuring range:The range in which the calibration curve shows linearity is called the measuring range. If a lower concentration is measured at which the linearity is not given, the calibration must be carried out at two points in the lower concentration range.Influence of the pH value:The ammonia electrode can be used in a pH range from 5 to 8. The influence of the pH value can cause a decrease in the slope of the ion-selective electrode or a parallel shift of the calibration curve. To avoid these effects, set the pH value to a suitable value in advance and keep it constant. Interfering ions:Ion-selective electrodes have good selectivity with respect to the ions being measured, but can react to other ions. When using the ion electrode method, it is important to be aware of the effects of coexisting ions and to take measures to avoid them. Interfering ions can form compounds with poor solubility or form complex salts with the structural material of the ion-selective membrane, which can significantly affect the measured value.Conditioning:An electrode is conditioned by immersing it in a standard solution for 1 hour or longer. Use a standard solution with a concentration of 100 mg/L or more. In the following cases, the electrode must be conditioned before calibration. Before first use. Before use after storage for 2 weeks or longer. When the electrode is less sensitive.Calibration:Always calibrate with at least 2 calibration solutions that are a decade apart and include the expected reading. Use fresh calibration solutions and do not reuse them.- Below 10 ppm (mg/L)First solution between 1 and 10 ppmSecond solution between 10 and 50 ppm- Between 10 and 100 ppm (mg/L)First solution between 10 and 100 ppmSecond solution between 100 and 1000 ppm- Over 100 ppm (mg/L)First solution between 100 and 1000 ppmSecond solution above 1000 ppmFurther information can be found in the download area of the store. Manufacturer article number: 3200986783 (300-NH4-C)

Nitrate (NO3-) ion selective electrode for 300 seriesThe new electrode is suitable for the LAQUA WQ-300 series from Horiba and offers precise and reliable measurements for ions in aqueous solutions. It is characterised by its user-friendly handling and environmentally friendly design and can be used for a wide range of applications.Features:Measurement parameters: Nitrate (NO3-) Solid-state electrodes that do not require refillingDouble junction made of porous sintered polyethyleneIntegrated temperature sensor Environmentally friendly design made from bio-based plasticSupplied with calibration and ionic strength adjustment solutionsRobust housing made of polycarbonate and PVCLow maintenance, simply rinse and sealWaterproof according to IP67Linearity in measurement range:The range where the calibration curve has linearity is called the measurement range. When lower concentration is measured where the linearity is not established, perform calibration at two points in the lower concentration range.Influence of pH:The impact of the pH may cause a decrease in the slope of the ion selective electrode, or parallel shifting of the calibration curve. To prevent these effects, set the pH to an appropriate value in advance and keep it constant.Interfering ions:Ion selective electrodes have good selectivity with respect to the ions to be measured, but they may react to the other ions. When using the ion electrode method, it is important to know the effects of coexistent ions and take measures to avoid them. Interfering ions may form compounds with poor solubility or may form complex salts with the structure material of the ion selective membrane, these may to have a significant impact on the measured value.Conditioning:An electrode is conditioned by soaking it in a standard solution for 1 hour or longer. Use a standard solution whose concentration is 100 mg/L or more.In the following cases, perform conditioning of the electrode before calibration.• Before the first use.• Before use after storage for 2 weeks or longer.• If the electrode is less responsive.Calibration:Always calibrate with at least 2 calibration solutions which are 1 decade apart and bracket the expected measurement value.Use fresh calibration solutions and do not re-use them.• Below 10 ppm (mg/L)First solution between 1 and 10ppmSecond solution between 10 and 50 ppm• Between 10 and 100 ppm (mg/L)First solution between 10 and 100ppmSecond solution between 100 and 1000 ppm• Above 100 ppm (mg/L)First solution between 100 and 1000ppmSecond solution above 1000 ppmFurther information can be found in the data sheets in the download area of the store Manufacturer article number: 3200986784 (300-NO3-C)

Manufacturer's number: 3014081712For water with low conductivity (e.g. deionized, distilled)Glass housing, platinum/platinum black, k=1, conductivity measuring cell with integrated temperature sensor Waterproof

Manufacturer's number: 3014081714For water with high conductivity  Glass body, platinum/platinum black, k=10, conductivity measuring cell with integrated temperature sensor Waterproof

Manufacturer number: 3014082592For column chromatography with a very small sample quantityGlass body, platinum/platinum black, k=10, conductivity measuring cell

Manufacturer's number.: 3200698386Ion selective electrodes respond to the concentration of specific ions in the test liquid and are variable potential electrodes. They are used in combination with reference electrodes to measure the concentration of certain ions.When measuring with an ion meter, the ion concentration can be read directly by calibrating with different standard solutions. Since the volume reading changes with temperature, the measurements must be taken at a fixed temperature.

Replacement DO tip for 9551-20D and 9551-100D DO electrodes Manufacturer article number:3014072770 (5401)

Horiba 5402 Replacement DO tip for galvanic oxygen sensor 9552-20D and 9552-50D Replacement DO tip for 9552-20D and 9552-50D DO electrodes Manufacturer article number:3200781553 (5402)

Manufacturer number: 3014081107This refillable pH electrode can measure samples in very slender test tubes (e.g., NMR test tubes) due to its long, thin, glass-body.Waterproof

Manufacturer number: 3014080850This glass electrode with conical tip and integrated temperature sensor is designed for pH measurement in food.

The liquid junction of this glass-body, refillable pH electrode is located on the flat pH sensing membrane. Perfect for measuring samples in shallow containers (e.g., petri dishes) and gelatinous samples (e.g., nutrient agar). For pH measurement of meat, skin, leather, paper, leaves and cloth.  Manufacturer article number:3014081807 (6261-10C)

Manufacturer number: 3014079136This glass-body, refillable pH electrode with temperature sensor has a sleeve junction for improved stability and repeatability. Ideal for highly accurate pH measurement.

Manufacturer's number: 3200697407 Ion-selective electrodes respond to the concentration of specific ions in the test fluid and are variable potential electrodes. They are used in combination with reference electrodes to measure the concentration of certain ions. When measuring with an ion meter, the ion concentration can be read directly by calibrating with different standard solutions. Since the volume reading changes with temperature, measurements must be taken at a fixed temperature. Note: Chloride sensor, if selected, is supplied without chloride ion strength regulator and chloride electrode filling solution. This must be procured by the customer. Without the filling solution the sensor can´t be used.

Manufacturer's number: 3200693774 Ion-selective electrodes respond to the concentration of specific ions in the test fluid and are variable potential electrodes. They are used in combination with reference electrodes to measure the concentration of certain ions. When measuring with an ion meter, the ion concentration can be read directly by calibrating with different standard solutions. Since the volume reading changes with temperature, the measurements must be taken at a fixed temperature.

Manufacturer's number: 3200697408 Ion-selective electrodes respond to the concentration of specific ions in the test fluid and are variable potential electrodes. They are used in combination with reference electrodes to measure the concentration of certain ions.  When measuring with an ion meter, the ion concentration can be read directly by calibrating with different standard solutions. Since the volume reading changes with temperature, the measurements must be taken at a fixed temperature.

Manufacturer's Number: 3200697409 Ion-selective electrodes respond to the concentration of specific ions in the test fluid and are variable potential electrodes. They are used in combination with reference electrodes to measure the concentration of certain ions. When measuring with an ion meter, the ion concentration can be read directly by calibrating with different standard solutions. Since the volume reading changes with temperature, measurements must be taken at a fixed temperature.

Manufacturer's number: 3200697410 Ion-selective electrodes respond to the concentration of specific ions in the test fluid and are variable potential electrodes. They are used in conjunction with reference electrodes to measure the concentration of certain ions. When measuring with an ion meter, the ion concentration can be read directly by calibrating with different standard solutions. Since the volume reading changes with temperature, measurements must be taken at a fixed temperature.