PHOENIX Instrument pH pocket meters EC-21 pH / EC-26 pH
Compact, precise and versatile pH measurements are indispensable for quality assurance, research and process monitoring in laboratories, environmental analysis and the food industry. Thanks to their accurate measurement results, robust design and ease of use, the PHOENIX Instrument pH pocket meters EC-21 pH and EC-26 pH are among the preferred solutions for professional users. Especially when mobility and reliability are required for outdoor use, these pocket meters offer outstanding value for money, state-of-the-art technology and target group-oriented functionality compared to other market participants.
Precision and reliability for demanding pH measurements
Whether for quick control measurements on site or precise analyses in the laboratory, both devices, the EC-21 pH and EC-26 pH, impress with their wide measuring range, flexible calibration and high robustness. The EC-21 pH covers a pH range from 0.00 to 14.00, while the EC-26 pH even allows measurements from -2.00 to 16.00, meaning that applications outside the classic neutrality range can also be reliably handled. Excellent accuracy of 0.1 / 0.01 pH and automated buffer recognition (USA, NIST and user-defined) ensure reliable analyses - even changing buffer solutions are reliably recognised and processed.
For electrochemical measurements (redox values), both models offer a generous mV measuring range: EC-21 pH up to ±1000 mV, EC-26 pH from -1000 to 1900 mV - ideal for oxidation-reduction investigations. The EC-26 pH is also suitable for the extended temperature range from -10 to 110 °C, making it ideally equipped for demanding field measurements or high-temperature processes. The high temperature precision of 0.1 / ±0.5 °C supports accurate temperature compensation during measurement.
Technical highlights at a glance:
- Measuring range (pH): 0.00-14.00 (EC-21 pH), -2.00-16.00 (EC-26 pH)
- Measuring range (mV): ±1000 (EC-21 pH), -1000 to 1900 (EC-26 pH)
- Accuracy: 0.1 / 0.01 pH, 1/0.1 mV, 0.1 / ±0.5 °C
- Calibration points: 1 to 3 selectable
- Automatic buffer recognition: USA, NIST, Custom
- Protection class: IP 57 (dust and splash-proof)
- Dimensions/weight: 185 × 85 × 45 mm / 400 g
- 3-year manufacturer's warranty
The EC-26 pH also offers an extended feature set for professional applications:
- GLP-compliant documentation
- 1000 memory locations for measurement results
- Calibration alarm for reminder function
- Micro USB interface for easy data transfer
Robust protection class and optimal solutions for mobile use
With IP 57 protection class compliance, the devices are protected against dust and temporary submersion - ideal for working environments where water, moisture and dirt are part of everyday life. The sturdy design and a 3-year manufacturer's warranty ensure durability and long-term use.
Specific application examples for various industries
The combination of precision, flexibility and robust design makes these pocket measuring devices a universal tool for numerous specialist applications:
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Drinking water and wastewater analysis: Monitoring water quality, checking sewage treatment plants, testing surface water.
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Research and development: Determining pH in biotechnology and chemical laboratories and when developing new recipes or systems.
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Quality and process control in the food industry: Measuring the pH value in the production of dairy products (e.g. quark, yoghurt), beverages and meat products to ensure compliance with hygiene standards.
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On-site environmental monitoring: pH control in soil extracts, rivers, lakes or industrial process wastewater.
Common standard buffer solutions such as pH 4.01, pH 7.00, pH 10.01 (USA) or NIST-compliant buffers are used for calibration - individual buffers can also be configured to flexibly adapt to any measurement requirement.
Certifications and standards
Compliance with protection class IP 57 is an essential quality feature for laboratory devices used in challenging environments. The devices meet all relevant safety and quality requirements for professional use. A special function is available for GLP (Good Laboratory Practice) on the EC-26 pH.
FAQs
How does the calibration of the devices work?
Calibration is intuitive: immerse the electrode in the desired buffer solution, select the calibration point (1-3 points possible) and follow the display guidance dialogue. The devices automatically recognise USA, NIST and user-defined buffers.
What advantages does the EC-26 pH offer compared to the EC-21 pH?
The EC-26 pH has GLP functions, a measurement memory for 1000 data points, a micro USB interface and an extended temperature and pH measurement range. It can also set calibration alarms.
Can it be used in harsh field conditions?
Thanks to their IP 57 protection class, the measuring devices are protected against dust and temporary submersion - they are specially designed for mobile outdoor use.
What solutions can be used to calibrate the devices?
Calibration with standard buffer solutions in accordance with USA or NIST is possible; custom buffer solutions can be programmed to measure specific analytes. What is included in the scope of delivery? In addition to the measuring device, the scope of delivery includes the pH electrode, batteries, calibration solutions and an operating manual. The EC-26 pH also includes a micro USB cable.
Conclusion
The EC-21 pH and EC-26 pH measuring devices from PHOENIX Instrument set standards for reliable, precise and mobile pH analysis in laboratories and in the field. Their high measurement accuracy, user-friendliness and comprehensive IP 57 protection standard make them the ideal choice for a wide range of specialist applications - from water monitoring to quality control in production and research. Specialist users benefit in particular from the extended range of functions of the EC-26 pH, while both models impress with their durability and robustness.
