pH Indicator

A pH color chart is a tool used for quickly determining the acidity or alkalinity of a liquid through colorimetry. It involves comparing the color of test paper immersed in the liquid with a standard color chart to estimate the pH range. It is suitable for simple acidity and alkalinity testing in settings such as laboratories and industrial sites.
Selection
When selecting a pH color chart, it is essential to consider the measurement accuracy requirements. For routine testing, a 0.5 pH graduation value can be chosen. Pay attention to the material of the color chart, which should be resistant to chemical corrosion, with clear color markings that are not prone to fading. Match the color chart's range according to the common types of liquids being tested, and ensure that the standard color chart is consistent with the batch of test strips.

Terms

Standards

Instruments

Suitable for 0~ 80 ℃ high temperature environment, Measurement accuracy of 0.01pH, Sensitivity high, more than 60 ℃ can still work stably, with Calomel electRode through potential changes reflect the pH value of the solution.

$ 94.00

Glass bulb sensitive film, Measurement range 0-14pH, suitable for low Conductivity Detector sample measurement under closed static conditions, Dimension Φ 12 × 120mm.

$ 89.00

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

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

$ 175.00

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

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

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

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

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

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

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

With pH and mV dual measurement function, Measurement accuracy of +/- 0.02pH, Support 0-60 ℃ Temperature Measurement range, Standard Composite ElectRode and optional diamond bracket, easy to operate.

$ 130.00

Glass electRode design, pH Measurement range 0.00~ 12.00, accuracy +/- 0.05pH, battery life up to 1000 hours, compact and portable for field use.

$ 299.00

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