Portable pH Meter Pen

A portable pH measuring pen utilizes a galvanic cell formed by a glass electrode and a reference electrode to measure the potential difference generated by hydrogen ion concentration in a solution, which is then converted into a pH reading via circuitry. It is used for rapid on-site detection of liquid acidity or alkalinity, making it suitable for scenarios requiring immediate measurements such as water quality monitoring, food processing, and chemical reactions.
Selection
When selecting, consider measurement accuracy and temperature compensation functions, examine electrode material and service life, confirm calibration methods and compatibility with buffer solutions, check waterproof rating and suitability for the operating environment, and compare data stability and maintenance costs across different brands.

Terms

Standards

Instruments

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

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

Microprocessor controlled, with 0.1-14 pH Measurement range and +/- 0.1 pH accuracy, support for three-point calibrate and temperature compensation, portable design weighing only 88g, suitable for on-site rapid detection.

$ 102.00

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

Measurement accuracy up to +/- 0.05PH, Repeatability +/- 0.03PH, equipped with LCD large screen display, support data retention and automatic temperature compensation function, easy and reliable operation.

$ 105.00

The piercing design can directly measure semi-solid substances, with an accuracy of +/- 0.05PH, equipped with temperature compensation function, Operating temperature range 0-60 ℃, easy to quickly detect on site.

$ 165.00

Measurement accuracy up to +/- 0.05pH, Repeatability +/- 0.03, support 0-70 ℃ temperature compensation range, equipped with 3.7V rechargeable lithium battery, LCD large screen dual display design for easy reading.

$ 115.00

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

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

Using microprocessor control, pH Measurement accuracy of +/- 0.02pH, support three point calibrated (4.01, 6.86, 9.18), simple operation, stable and reliable performance.

$ 107.00

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

Measurement accuracy +/- 0.1pH, support three-point calibrated, built-in ElectRode design, compact and easy to carry, suitable for outdoor water quality testing, simple and reliable operation.

$ 101.00

Fast Response with Planar pH ElectRode, Automatic temperature compensation and 1-3 point Adjustment, Measurement accuracy of 0.01 pH, Support automatic end point locking and full waterproof design.

$ 173.00

Equipped with planar pH ElectRode, Measurement accuracy is 0.05pH, support 2 point calibrating and automatic temperature compensation, fully waterproof design and replaceable ElectRode, prolong service life.

$ 141.00

Measurement range pH -2.00 to 16.00, accuracy +/- 0.01pH, support for Automatic calibration and temperature compensation, IP67 Protection Rating ensures durability.

$ 154.00

Articles

Pencil hardness tester rapidly evaluates scratch resistance of paint film.
This article introduces how to quickly assess the scratch resistance of paint films using a pencil hardness tester. During the test, standard pencils (ranging from 6B to 9H) are used to scratch the coating at a fixed angle and pressure to observe whether scratches occur.
Dyne Pen Selection, Surface Energy Test Range, and Pen Tip Lifespan
The dyne pen is used to evaluate the wettability of material surfaces, reflecting the effectiveness of treatments by measuring surface energy.
Pencil Hardness Tester for Rapid Evaluation of Coating Surface Hardness
The pencil hardness tester is a tool used for rapidly assessing the relative hardness of coating surfaces through standardized scratch tests. It employs a series of pencil leads with known hardness levels, which are drawn across the coating under a fixed load and angle. The hardness grade, ranging from 6B to 9H, is determined based on whether a permanent scratch is produced.
Pencil Hardness Plan Outstanding Paint Film Pencil Hardness Grade
The pencil hardness test is a method for evaluating the scratch resistance of paint films. It involves using a series of pencils with known hardness levels to scratch the coated surface under fixed conditions. The hardness grade of the coating is determined by observing whether permanent scratches are produced.
Application of Film Pencil Hardness Tester in Coating Scratch Resistance Testing
The paint film pencil hardness tester is an instrument used to evaluate the scratch resistance of coatings. It works by scratching the surface of the coating with a pencil of known hardness under a fixed load, and then assessing the hardness grade based on whether scratches are produced.
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.
Classification standards for determining the hardness of coatings using a pencil hardness tester.
This article introduces the method of measuring the hardness of coatings using a pencil hardness tester. It involves using pencils of varying hardness to scratch the coating and observing whether scratches are produced to determine the hardness grade, ranging from 6B to 9H.
When to use three-point calibration versus two-point calibration for pH meters?
The calibration of a pH meter is performed to determine the actual zero potential and slope of the electrode, enabling accurate measurement of the acidity or alkalinity of a solution. Two-point calibration is commonly used for daily measurements within a narrow range, while three-point calibration is employed for higher accuracy requirements.
Key Operational Points and Influencing Factors of Pencil Hardness Method for Determining Coating Film Hardness
The pencil hardness test is a method used to evaluate the scratch resistance of a coating by making marks on the paint film with pencils of known hardness. During the operation, a uniformly cured sample is prepared, and calibrated pencils are used to make marks at a 45-degree angle with a fixed force, aiming to identify the highest hardness grade that does not scratch through the paint film.
How to Select a Pencil Hardness Tester? A Comprehensive Guide from Principles to Practical Application
When selecting a pencil hardness tester, focus on three key points: choose manual or automatic based on standards, use specialized testing pencils, and ensure the instrument can fix a 45-degree angle for uniform force application to achieve accurate and reliable results.