CATEGORIES

    Continuous pH Meter

    Overview Products Knowledge Standards Terms
    A continuous pH meter forms a galvanic cell through a glass electrode and a reference electrode to measure the potential difference generated by the hydrogen ion concentration in the solution. It monitors changes in acidity and alkalinity during processes, enabling real-time control in applications such as water treatment and chemical reactions.
    Selection
    When selecting, consider the electrode material's compatibility with the measured medium, the protection level matching the on-site environment, and the temperature compensation range covering the operating conditions. Ensure the output signal is compatible with the existing control system, and the electrode is easy to maintain and clean.
    type
    Measuring range
    precision
    Annex

    Terms

    Furnace Temperature Recorder
    Coating Pinhole Leak Detector
    MT Magnetic Particle Flaw Detector
    Online Turbidity Meter
    Two-stage Rotary Vane Vacuum Pump
    Paint film conical bending tester
    Coating Holiday Detector
    Online Dissolved Oxygen Meter
    Wireless Oven Temperature Tunnel Recorder
    DC Pinhole Detector

    Standards

    Active GB/T 46063-2025
    Continuous fiber reinforced ceramic matrix composite—Test method for hoop tensile properties of tubes at room temperature
    Active GB/T 46065-2025
    Continuous fiber reinforced ceramic matrix composite—Test method for axial tensile properties of tubes at room temperature
    Active GB/T 4909.9-2009
    Test methods for bare wires - Part 9: Test for continuity of coating - Sodium polysulfide solution method
    Active GB/T 27720-2011
    Calculation method of energy equilibrium and energy efficiency in Kamyr continuous cooking system
    Active GB/T 13893-2008
    Paints and varnishes - Determination of resistnace to humidity - Continuous condensation

    Instruments

    QIWEI PH-110 online pH Meter Industrial wastewater PH value Continuous measurement Control ORP measurement
    QIWEI PH-110 online pH Meter Industrial wastewater PH value Continuous measurement Control ORP measurement

    With PH/ORP measurement function, Measurement accuracy up to +/- 0.02pH, support temperature automatic compensation and manual compensation, provide high and low limit alarm dual relay, isolated transmitter port maximum loop resistance greater than 300Ω.

    $ 154.00
    HANNA HI981401N-02 pH measurement controller acidity temperature monitor
    HANNA HI981401N-02 pH measurement controller acidity temperature monitor

    Supports 24-hour continuous monitoring of acidity and temperature, Measurement accuracy +/- 0.2pH, resolution 0.1pH, Manual calibration method, suitable for rapid measurement of multiple batches of samples.

    $ 328.00
    HANNA HI991405-02 Water quality Analyzer pH conductivity TDS temperature continuous monitoring
    HANNA HI991405-02 Water quality Analyzer pH conductivity TDS temperature continuous monitoring

    Measurement range pH0.0-14.0, EC0.00-20.00 mS/cm, Automatic calibration and continuous monitoring function, easy and convenient operation.

    $ 532.00
    HANNA HI981420-02 Water Quality Analyzer pH conductivity TDS Continuous Temperature Monitoring
    HANNA HI981420-02 Water Quality Analyzer pH conductivity TDS Continuous Temperature Monitoring

    Support 0.00-14 pH and 0.00-10 mS/cm conductivity measurement, automatic temperature compensation, 24-hour continuous monitoring, high and low alarm LED indication, Data storage interval of 15 minutes.

    $ 769.00
    HANNA HI981402-02 pH Measurement Controller Wall-Mounted Waterproof Alarm LED Screen Display
    HANNA HI981402-02 pH Measurement Controller Wall-Mounted Waterproof Alarm LED Screen Display

    Wall-Mounted waterproof structure is equipped with PTFE anti-clogging dialysis membrane, supports 0.0-14 pH Measurement range and +/- 0.2pH accuracy, alarm point can be set at 3-11pH, LED light reminder when the setting exceeds +/- 0.5pH, extending ElectRode life.

    $ 272.00
    HANNA HI1135B PH ElectRode Refillable Double Junction Side Arm Structure High Temperature Glass
    HANNA HI1135B PH ElectRode Refillable Double Junction Side Arm Structure High Temperature Glass

    Measurement range 0-14 pH, temperature resistance 0-100 ° C, side arm construction allows for faster Flow velocity for continuous pH monitoring applications.

    $ 649.00
    QIWEI PHS-25 pH Meter Benchtop pH Meter +/- 0.05pH accuracy ph value mV value measurement
    QIWEI PHS-25 pH Meter Benchtop pH Meter +/- 0.05pH accuracy ph value mV value measurement

    Measurement accuracy of +/- 0.05pH, resolution of 0.01pH, pH and mV can be detected at the same time, built-in battery supports 10-15 hours of battery life, easy to operate, stable and reliable.

    $ 127.00
    QIWEI PHB-4 pH Meter portable microcomputer pH Tester 0.01pH accuracy automatic temperature compensation
    QIWEI PHB-4 pH Meter portable microcomputer pH Tester 0.01pH accuracy automatic temperature compensation

    Measurement accuracy of 0.01 pH, support automatic temperature compensation and pH/mV/temperature Multi-ParaMeter measurement, simple, stable and reliable operation.

    $ 175.00
    QIWEI PH-220 pH Meter Portable pH Meter accuracy 0.01pH temperature display
    QIWEI PH-220 pH Meter Portable pH Meter accuracy 0.01pH temperature display

    Measurement accuracy of +/- 0.02pH, resolution of 0.01pH, support three-point calibrated, built-in Glass electRode, small size weighing only 88g, suitable for 0-50 ℃ environment, easy to quickly detect on site.

    $ 104.00
    SMART SENSOR PH828 Pen pH Meter Portable pH Meter High Accuracy temperature measurement
    SMART SENSOR PH828 Pen pH Meter Portable pH Meter High Accuracy temperature measurement

    Measurement range 0.00-14 pH, accuracy +/- 0.05pH, with temperature compensation function, portable design for easy field use, large screen LCD display is clear and intuitive.

    $ 114.00
    SMART SENSOR PH838 Pen pH Meter Portable pH Meter High Accuracy Temperature Display
    SMART SENSOR PH838 Pen pH Meter Portable pH Meter High Accuracy Temperature Display

    Measurement range 0.00-14 pH, accuracy +/- 0.05pH, with automatic temperature compensation function, portable design for on-site fast detection, repeatability error only +/- 0.03.

    $ 105.00
    QIWEI PH-20W pH Meter pen acidity Meter, three point calibrated portable measurement
    QIWEI PH-20W pH Meter pen acidity Meter, three point calibrated portable measurement

    Measurement accuracy of +/- 0.1pH with three-point calibrating technology, PH and temperature can be measured simultaneously, compact and portable, suitable for outdoor use.

    $ 107.00
    BANTE PHscan30L Pen pH Meter Planar pH ElectRode High Accuracy 0.01pH
    BANTE PHscan30L Pen pH Meter Planar pH ElectRode High Accuracy 0.01pH

    Using planar pH ElectRode design, Measurement accuracy of 0.01pH, Support 1-3 point Automatic calibration, with automatic temperature compensation and end point locking function, full waterproof structure to ensure harsh environment use.

    $ 178.00
    LEICI 65-1C pH Compound ElectRode Glass Shell pH ElectRode 0-14pH 5-60 ℃
    LEICI 65-1C pH Compound ElectRode Glass Shell pH ElectRode 0-14pH 5-60 ℃

    Glass shell and sensitive membrane, pH Measurement range 0-14pH, Temperature range 5-60 ℃, suitable for routine sample measurement, liquid boundary is ceramic core single salt bridge, reference type Ag/AgCl.

    $ 98.00
    QIWEI PH-220W Pen pH Meter External ElectRode 0.01pH accuracy Temperature display
    QIWEI PH-220W Pen pH Meter External ElectRode 0.01pH accuracy Temperature display

    Using external ElectRode design, Measurement accuracy of 0.01pH, support 0.1-14 pH range and 0-50 ℃ temperature measurement, small size for on-site detection and operation.

    $ 112.00

    Articles

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    Negative Pressure Method Sealing Tester for Detecting Leakage in Food Packaging
    The negative pressure method seal tester creates a pressure difference inside and outside the packaging by evacuating air to detect leaks in food packaging. If there is a leak in the packaging, water will enter the packaging or produce continuous bubbles under the pressure difference, thereby determining the seal integrity. The test requires controlling parameters such as vacuum level and time, and should be conducted in accordance with relevant standards.
    Key points for measuring the pH of water-based ink with a pH meter
    This article introduces the key steps for measuring the acidity or alkalinity of water-based inks using a pH meter.
    Cupping tester evaluates the ductility of coatings.
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