The latest calibration-free disposable pH electrode for gas/Humming Probe pH electrode for gas/Humming Probe UH2-Gas/UltraE

Introduction video

How the original gas pH test strip works?

How can the calibration-free disposable pH electrode for gas/Humming Probe pH electrode for gas directly measure pH for gas without collecting gas/Humming Probe UH2-Gas/UltraE

Patented porous gas-exchange hydrogel membrane design

Detect gas sample without pretreatment

Traditional pH measurement usually operates in aqueous phase systems. If you want to know the pH value of volatile substances in the air, you need to dissolve them in solution before measurement. With the porous gas-exchange hydrogel membrane, the pH value of volatile substances can be measured directly by hydrolyzing the gas.

Fast adsorption-desorption gas exchange

Equilibrium is reached in a short time

Traditional methods of collecting gas samples and pretreating into an aqueous solution to detect the pH value cannot continuously detect the change of the gas pH value. The porous hydrogel membrane of the Humming Probe cooperates with the ion adsorption membrane, which can quickly adsorb and desorb the gas to reach an equilibrium state in a short period of time, to provide continuous detection of the pH value of the gas.

pH equilibrium of fast adsorption-desorption gas exchange of the calibration-free disposable pH electrode for gas/Humming Probe pH electrode for gas/Humming Probe UH2-Gas/UltraE

Calibration principle for the calibration-free disposable pH electrode for gas/Humming Probe pH electrode for gas/Humming Probe UH2/UltraE

Patented hydrogen ion adsorption film design

Precise maintenance of surface-exchangeable hydrogen ion content

We use the patented hydrogen ion adsorption film, in addition to selectively allowing hydrogen ions in the sample to pass through, to avoid the passivation caused by the adsorption of other matrices in the sample on the surface of the electrode and simplifies the sample processing steps. Furthermore, the surface-exchangeable hydrogen ion content in the Nernst equation, which affects the Ek' value, can be precisely controlled by the design of the hydrogen ion adsorption film.

The calibration-free disposable pH electrode for gas/Humming Probe pH electrode for gas can be used in freshness、pH test of fish 、meat、ammonia or nitrogenous substances /Humming Probe UH2-Gas/UltraE

Freshness
examination

The calibration-free disposable pH electrode for gas/Humming Probe pH electrode for gas can be used in exhaust gas (sulfur dioxide, nitrogen dioxide) emission pH test/pH detection/Humming Probe UH2-Gas/UltraE

Exhaust emission
examination

The calibration-free disposable pH electrode for gas/Humming Probe pH electrode for gas can be used in pH test of fermentation and maturation process/Humming Probe UH2-Gas/UltraE

Fermentation process
monitoring

Continuous Gas
Detection

Why is the Humming Probe pH Measurement System calibration-free?

Patented hydrogen ion exchange film design

Supply electrodes with fixed reaction area

Calibration principle and Nernst equation principle and application for the calibration-free disposable pH electrode for gas/Humming Probe pH electrode for gas/Humming Probe UH2-Gas/UltraE

Automated production technology

Make every electrode look "the same"

Automated production machine can quickly introduce R&D results into the production process for the most efficient bridging of R&D and production. The automatic production machine (G1) can achieve a CV value of 3~5% for the production stability of test strips through automated production model. In addition, we have developed different types of automated machines for different manufacturing process requirements, such as temperature sensing component assembly machines, to increase production stability and consistent quality.

Automatic production process of the calibration-free disposable pH electrode/Humming Probe pH electrode for gas/Humming Probe UH2-Gas/UltraE

Calibration before leaving the factory

Each test strip has been calibrated

Each test strip has been calibrated and verified using NIST traceability standards before leaving the factory, so you can simply take the test strip out of the vial and test pH directly. verified using NIST traceability standards before leaving the factory, so you can simply take the test strip out of the vial and test pH directly.

How the calibration-free disposable pH electrodes for gas/Humming Probe pH electrodes for gas are accurately calibrated before leaving the factory /Humming Probe UH2-Gas/UltraE

Each strip is equipped with independent temperature sensing element

Smart temperature compensation for every test

Each test strip is embedded with an independent small-volume temperature sensing element. When the sample temperature is within the range of 10-40 degrees, even with a small quantity of sample, it also has automatic temperature compensation (ATC), and the resolution can reach ±0.01 pH.

The temperature compensation element of the calibration-free disposable pH electrode for gas/Humming Probe pH electrodes for gas/Humming Probe UH2-Gas/UltraE

What makes the Humming Probe pH Strip – UH2 GAS special in addition to being free of calibration?

Disposable Design

A brand-new test strip can be taken from the vial for each use and requires no time-consuming cleaning or maintenance after testing. For viscous or easily adsorbed samples or in combination with various special treatments, it breaks through the limitations of traditional glass electrodes and provides you with more applications.

The calibration-free disposable pH electrode for gas/Humming Probe pH electrode for gas has a ultra small size slim electrode,can be put in narrow channels to test gas pH/Humming Probe UH2-Gas/UltraE

Slim detection electrode design

The slim electrode design is convenient to be put in narrow channels, sampling ports, or inserted into living organisms.

The calibration-free disposable pH electrode for gas/Humming Probe pH electrode for gas is portable and maintenance-free/Humming Probe UH2-Gas/UltraE

Portable and easy storage

The thickness of traditional glass electrode’s glass film is only 0.1-0.3mm, so it is easy to break. For storage, it needs to be continuously immersed in liquid storage solution, so special care is needed for carrying. The special design of the Humming Probe does not contain any filling liquid. Small size, portable, just put it in the vial with a tight lid, suitable for mobile outdoor testing environment.

Find your Humming Probe

Classic

Suitable for most
testing requirements

UH1 pH STRIP

Suitable for liquid samples
Ultra small sample requirement:
10-20 μL
Suitable for single & continuous test

New

Micro-sample

Suitable for precious
and micro samples

UH2 pH STRIP

Suitable for liquid samples
Ultra small sample requirement:
1-2 μL
Suitable for single & continuous test

New

Gas

Suitable for
gas samples

UH2-Gas pH STRIP

Suitable for gas samples
Lower limit of detection
Suitable for single & continuous test

Find your meter and accessories

UX100 pH Meter

4.3” Color Waterproof Touchscreen
Waterproof: IP54
Dual Mode Inspection Design
Built-In 5M Pixels Camera, Data Editable

Learn More

UX200 pH Meter

pH chart
7” Color Touchscreen
Waterproof: IP54
Dual Mode Inspection Design
Built-In 5M Pixels Camera, Data Editable

Learn More

CS200 MAGNET INVERTER MIXER

Constant Temperature Control (20-40°C)
Digital Speed Control/Display (400-1500rpm)
Clockwise & Counter-Clockwise Design
Beaker Size Range (10-500 mL)

Learn More

UH2-Gas pH Strip Electrode

Download DM

Dimensions and packaging specifications of the calibration-free disposable pH electrode for gas/Humming Probe pH electrode for gas/Humming Probe UH2-Gas/UltraE

UH2-Gas pH Strip Electrode

Range:	pH 0~14
Accuracy:	± 0.1pH
Sample temperature:	10-40°C( When the temperature is less than 10°C or greater than 40°C, a warning message will be displayed)
Dimension (W x L x T ):	12.6 x 50.0 x 1.0 mm

Note: The pH Test Strip Electrode should always be capped and stored in the vial and only to be taken out when using. Each vial contains 25 pieces of pH test strip electrodes, and each box contains 2 vials.

UX100

4.3” Color Touchscreen
Waterproof: IP54
Dual Mode Inspection Design Detail

Detail

CS200

Constant Temperature Control (20～40°C)
Clockwise & Counter-Clockwise Design
Beaker Size Range (10～500 mL)

UH1

Calibration-free and ready-to-use
Ultra small sample requirement (10～20µL).
Disposable to avoid multi-sample cross-contamination

Detail

UH2

Calibration-free and ready-to-use
Ultra small sample requirement (1～2µL).
Disposable to avoid multi-sample cross-contamination

Detail

UH2-Gas

Accurate, calibration-free, ready-to-use
Suitable for gas samples
Accuracy can reach ±0.1 pH

Detail

UX200

7” Color Touchscreen
Waterproof: IP54
Dual Mode Inspection Design

Detail

Humming Probe UH2-Gas
pH Strip Electrode for Gas

pH-test paper / pH test strip / pH measurement / pH strip electrode / single use pH sensor for gas

The industry’s first gas pH measurement method, using a special gas exchange membrane, combined with the tiny characteristics of the test strip electrode, can quickly and easily measure the gas pH. It is the world's first professional measurement technology and innovative solution.

Introduction video