You have probably heard or seen the term pH value at least once before. You may also remember experiments in school where litmus paper was used to test whether a solution was acidic or alkaline.
The determination of the pH value is important to determine an important characteristic of a solution. Thus, pH is just a unit that represents a characteristic of a solution, just as the meter is a unit of length. Thus, pH, which is commonly used for water measurements, is a measure of acidity and alkalinity, or the alkalis and bases present in a particular solution.
So what kind of characteristic is represented by pH? The pH indicates how acidic or alkaline a solution is, such as your lemon juice or soap suds, and is generally expressed on a numerical scale of 0-14. Pure, neutral water has a pH of 7. Any solution with a pH below 7 is acidic, and if the pH is above 7, it is alkaline. The numbers on the scale increase with increasing alkalinity, while the numbers on the scale decrease with increasing acidity.
An exemplary measurement of the pH value with a pocket tester can be found in the video link below: Pocket Tester Shop
HORIBA LAQUAtwin pH Meter
Dear customers, our handy pocket tester analysis case protects your handheld tester safely and also offers you space for the required calibration and buffer solutions. The 25ml sachet or 70ml bottle solutions matching the tester can be accommodated in the foam blank. Your analysis case consists of the following components: 1x pocket tester 1x pH 4.01 buffer solution (25ml bag or 70ml bottle) 1x pH 7.00 buffer solution (25ml bag or 70ml bottle) 1x storage solution (25ml bag or 70ml bottle) 2x batteries 1x lanyard for the pocket tester 1x pack of tissues You can also purchase the case separately to safely store your existing testers and always have the appropriate calibration and buffer solutions on site in the case. IP protection class: IP67
With a measurement resolution of 0.01 pH, this waterproof handheld device delivers accurate results even under demanding conditions. It is equipped with a replaceable electrode, a temperature sensor and open measuring chambers, making it extremely versatile. The wide, three-colour LCD display clearly shows the calibration buffers used and the stability of the measurement. Calibration is easy with the push of a button at three points with five selectable US buffer values. In addition, the status of the pH electrode can be checked via the mV display. The device also features a temperature display, automatic temperature compensation in the range of 0–60 °C and an automatic shut-off function – for greater convenience and longer battery life. IP protection class: IP67 With replaceable probe Manufacturer item number: 50014063
The high quality XS Instruments portable multi-parameter meters of the Vio 7 and Vio 70 series with innovative high-resolution colour display are suitable for working in all conditions and offer easy handling through an integrated user-friendly operator guide in the form of the set-up and calibration mode. This allows the user to operate the instruments easily and intuitively. The XS Instruments meters feature automatic pH calibration with USA and NIST buffers with up to three points for pH and one point for ORP. The user is supported by intuitive symbols on the backlit screen, including display of the measurement stability (adjustable) and any errors. Another plus point is that the multi-parameter meter is supplied in a professional measuring case, which contains the selected measuring electrode, as well as the appropriate buffer solutions and instructions. Complementary advantages of the 70 Vio version: GLP functions: Date and time, recall of calibration data and "Calibration due" function Integrated data logger for up to 1000 data, automatic and manual PC connection via USB for evaluation of measurement data (Micro-USB on the instrument side) via Data Link+ software Automatic brightness control of the display (prolongs battery life) Only 6 keys for easy control of all functions of the unit 230V power supply unit Manufacturer article number: 50110012
The high quality XS Instruments portable multi-parameter meters of the Vio 7 and Vio 70 series with innovative high-resolution colour display are suitable for working in all conditions and offer easy handling through an integrated user-friendly operator guide in the form of the set-up and calibration mode. This allows the user to operate the instruments easily and intuitively. The XS Instruments meters feature automatic pH calibration with USA and NIST buffers with up to three points for pH and one point for ORP. The user is supported by intuitive symbols on the backlit screen, including display of the measurement stability (adjustable) and any errors. Another plus point is that the multi-parameter meter is supplied in a professional measuring case, which contains the selected measuring electrode, as well as the appropriate buffer solutions and instructions.Complementary advantages of the 70 Vio version:GLP functions: Date and time, recall of calibration data and "Calibration due" functionIntegrated data logger for up to 1000 data, automatic and manual PC connection via USB for evaluation of measurement data (Micro-USB on the instrument side) via Data Link+ software Automatic brightness control of the display (prolongs battery life) Only 6 keys for easy control of all functions of the unit 230V power supply unit Manufacturer article number: 50110112
This portable device accurately measures pH values (0.01 resolution) and ORP/redox potentials and, thanks to its IP67 protection, is also reliable for outdoor use. With automatic three-point pH calibration, flexible ORP calibration, temperature compensation and mV diagnostic function, it is extremely versatile. The large 3-colour display clearly shows measured values, calibration buffers, stability and temperature. Practical extras such as auto power-off and self-diagnostic messages make it particularly safe and user-friendly. IP protection class: IP67With replaceable probeManufacturer item number: 50014133
Dear customers, our handy pocket tester analysis case protects your handheld tester safely and also offers you space for the required calibration and buffer solutions. The pH buffer and storage solution matching the tester in the 25 ml sachet and the 70ml 475mV redox solution finds place in the foam blank. Your analysis case consists of the following components: 1x pocket tester 1x pH 4.01 buffer solution (25ml bag or 70ml bottle) 1x storage solution (25ml bag or 70ml bottle) 1x 475mV ORP solution in a 70ml bottle 2x batteries 1x lanyard for the pocket tester 1x pack of tissues You can also purchase the case separately to safely store your existing testers and always have the appropriate calibration and buffer solutions on site in the case. IP protection class: IP67
This compact measuring device combines pH and ORP/redox measurement in a robust, waterproof housing (IP67). With a resolution of 0.01 pH and mV, it offers maximum precision. The built-in microprocessor and replaceable combination electrode ensure reliable and long-lasting use. The three-colour LCD display clearly shows all important information: calibration buffers used, measurement stability, temperature and mV values. pH calibration is performed automatically at three points with five selectable US buffer values, while ORP calibration can be flexibly performed at a point specified by the user. In addition, the mV display can be used for both electrode diagnosis and redox measurement. For convenient operation, a temperature display, automatic temperature compensation (0–60 °C), an automatic switch-off function and clear self-diagnostic messages for low battery status or calibration errors are integrated. This makes the device ideal for precise laboratory and field applications. IP protection class: IP67 With interchangeable probeManufacturer item number: 50014173