Introduction
A pH tester is an instrument used to measure the pH of a solution, which is the acidity or alkalinity, expressed on a scale from 0 to 14, and it is one of the most common and important measurements in laboratories, industry, agriculture, and many other fields. The tester measures the pH with a pH electrode, typically a glass electrode combined with a reference electrode, which develops an electrical potential that depends on the hydrogen ion activity of the solution, and it displays the pH value on a digital display, with automatic temperature compensation, since the pH measurement depends on the temperature; the tester may be a portable handheld instrument, a benchtop meter, or a compact pocket tester, and it is calibrated with buffer solutions of known pH, and it is simple to use, with the electrode immersed in the sample. pH testers are used in laboratories for measuring the pH of solutions, buffers, and samples, in water treatment for monitoring the pH of drinking water, wastewater, and process water, in agriculture for testing the pH of soil and irrigation water, in aquaculture for monitoring pond water, in the food and beverage industry for monitoring the pH of products and processes, in pools and spas for monitoring the water, in pharmaceuticals, in cosmetics, in environmental monitoring, and in many other applications, and they are used for routine measurements, for quality control, and for research, with features such as digital displays, automatic calibration, and different measurement ranges. With their importance in measuring acidity and alkalinity, pH testers are essential instruments in almost every field that handles liquids.
Pentype pH Tester LPPT-T2011
Pentype pH Tester measures -1.00 to 15.00 pH with 0.01 pH resolution for accurate readings. It ensures ±0.2 pH accuracy, ideal for reliable lab testing across various environments. The ...
Pentype pH Tester LPPT-T2010
Pentype pH Tester provides pH measurements with a range of 0.00 to 14.00 and a resolution of 0.01 pH. It ensures accurate temperature testing from 0 to 100°C with an accuracy of ±0.2°...
Pocket pH Tester LPPT-T2020
Pocket Ph tester offers a pH measurement range of 0.0 to 15.00 pH with an accuracy of ±0.01 pH. The built-in system menu allows customization of calibration points and other functional ...
Pocket pH tester LPPT-T2031
Pocket pH tester comes with 0.0 to 15.00 pH range. It has flat shape pH electrode. It is suitable for measuring pH of liquids, solutions. Equipped with reset function to restore settings...
Pocket pH Tester LPPT-T2032
Pocket pH tester provides precise pH measurements from -1.00 to 15.00 pH with an accuracy of ±0.01 pH. The auto-hold function locks stable readings for better recording. It has an autom...
Multi purpose Pocket pH tester LPPT-T2010
The multipurpose pocket pH tester comes with connector, it can be connected to different pH electrode for different applications. With (-1.00) to 15.00 pH measurement range, 1 - 3 points...
Pocket pH Tester LPPT-T2022
Pocket pH tester measures pH in the range of -1.00 to 15.00 with an accuracy of ±0.01 pH. Its replaceable electrodes provide cost-effective maintenance. This device offers automatic tem...
Pocket pH tester LPPT-T2030
Pocket pH tester comes with 0.0 to 15.00 pH range. It has round glass shape pH electrode. It is suitable for measuring pH of liquids, solutions. Equipped with reset function to restore s...
Pocket pH Tester LPPT-T2021
Pocket pH tester has a pH measurement range of -1.00 to 15.00 pH with an accuracy of ±0.01 pH. It offers automatic temperature compensation for precise results. It features a data hold ...
Pocket pH tester LPPT-T2010
Pocket pH tester comes with 0.0 to 14.00 pH range. Its has round glass shape pH electrode. This pH tester has 2 points push button calibration system to automatically identify pH buffer....
Pocket pH tester LPPT-T2011
Pocket pH tester comes with 0.0 to 14.00 pH range. Its has flat shape pH electrode. This pH tester has 2 points push button calibration system to automatically identify pH buffer. It is ...
Pocket pH tester LPPT-T2012
Pocket pH tester comes with 0.0 to 14.00 pH range. Its has long distance planar shape pH electrode. This pH tester has 2 points push button calibration system to automatically identify p...
Standards
GB/T 11165-2005-Laboratory pH meter
USP General Chapter <791>-pH
IEC 60746-2:2003-Expression of performance of electrochemical analyzers-Part 2: pH value
Complies with the above standards, but is not limited to them.
Features
1. pH tester for measuring acidity/alkalinity of water and solutions.
2. Glass electrode sensor for accurate pH measurement in field and lab.
3. Suitable for water treatment, environmental, food, chemical, agricultural and research.
4. Includes tester, pH electrode, calibration buffers, storage solution and manual.
5. Supports pH measurement for water quality, process control and research.
FAQ
Q1: What testing scenarios is this tester mainly applied to?
A: The pH tester is used in water treatment, environmental monitoring, food and beverage, chemical processing, agriculture, aquaculture, swimming pools and research to measure the pH (acidity/alkalinity) of water and solutions for water quality assessment, process control and regulatory compliance. It supports drinking water quality monitoring, wastewater treatment process control, food and beverage production (pH affects taste, safety and preservation), chemical process control, agriculture soil and water testing, aquaculture water quality management, swimming pool maintenance, and educational and research applications. pH is one of the most commonly measured water quality parameters, affecting chemical reactions, biological processes and material compatibility.
Q2: What standards does the tester comply with?
A: The pH tester follows relevant ISO, ASTM and GB/T standards for pH measurement, including ISO 10523, ASTM D1293, and GB/T standards. The hardware complies with IEC 61010 safety standards. Calibration should use certified pH buffer solutions (e.g., pH 4.01, 7.00, 10.01) traceable to international standards. Drinking water pH limits follow applicable regulations (WHO, EPA, GB 5749: 6.5-8.5).
Q3: What is the warranty period for the whole machine and key components?
A: The whole pH tester is covered by a 12-month warranty. The electrode, electronics and display are covered, while calibration buffers, storage solution, batteries and fuses are consumables. Damage from improper use, electrode breakage or unauthorized repair is excluded. pH glass electrodes have a limited service life (typically 1-2 years).
Q4: Is this device difficult to operate? Is professional training required?
A: Operation is simple: calibrate with buffers, immerse electrode, allow stabilization, and read result. No professional training is required for basic use, but users should follow proper electrode maintenance, calibration and storage. We provide an operation manual and remote guidance. Proper calibration (2-3 point) is important for accurate pH readings.
Q5: What is the typical lead-time for order delivery?
A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.
Q6: Is regular calibration required? What is the recommended calibration cycle?
A: Calibration with certified pH buffers recommended before each use session for critical measurements, or at least daily. Electrode cleaning and conditioning regularly. Electrode replacement when response slows or calibration fails. Battery replacement when needed. Full tester calibration annually.
Q7: Are supporting consumables universal?
A: pH calibration buffers, storage solution, batteries and electrode cleaning supplies are available from laboratory suppliers, though electrode compatibility should be verified. Long-term consumable cost is low to moderate depending on electrode lifespan.
Q8: Can I customize parameters or supporting accessories?
A: Customization includes electrode type (glass, ISFET), measurement range, temperature compensation, combination pH/ORP/temperature, data logging, waterproof rating and accessories. Additional electrodes and buffers can be ordered separately. Custom orders extend delivery lead-time.
Q9: Does the purchase include on-site installation and commissioning service?
A: No installation is required for portable testers. The package includes the tester, pH electrode, calibration buffers and instruction manual. On-site training is available at additional cost.
Q10: What types of samples are compatible with this equipment?
A: The pH tester measures pH in water and aqueous solutions within the pH range (typically 0-14), temperature and chemical compatibility specification. The glass electrode can be damaged by highly corrosive, fluoride-containing or very hot samples. Non-aqueous samples may require special electrodes. Users should calibrate with 2-3 certified buffers covering the sample pH range, keep the electrode hydrated in storage solution (3M KCl), allow sufficient stabilization time, rinse electrode with distilled water between samples, report results with temperature specified, and for high-accuracy work, perform calibration before each use. The electrode should be cleaned periodically with a mild detergent or appropriate cleaning solution to remove protein or mineral deposits. For food applications, follow applicable food safety regulations. The electrode should not be allowed to dry out for extended periods (rehydration may be required). For low-ionic-strength samples (e.g., pure water), special electrodes or longer stabilization times may be needed. The tester should be stored in a cool, dry place with the electrode properly stored. For field use, the meter should meet appropriate IP rating. Temperature compensation should be enabled for accurate pH readings, as pH varies with temperature.
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