COLO.Science — WATER QUALITY / ELECTROCHEMISTRY — PRO6134
Laboratory pH Electrode for pH Meter | COLO.Science
PRO6134 pH composite electrode is a standard laboratory pH electrode for routine aqueous sample measurement with compatible pH meters. The electrode combines the pH indicator electrode and Ag/AgCl reference system in a practical composite format. With a 0–14 pH range, 3 M KCl fill solution, polycarbonate body, single fabric junction, 5–60 °C working temperature and standard BNC(Q9) connector, PRO6134 is designed for everyday laboratory, education, water quality and general electrochemistry workflows.
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COLO.SCIENCE — PH ELECTRODES / ELECTROCHEMISTRY / WATER QUALITY
Standard pH composite electrode for routine laboratory measurement
The PRO6134 pH composite electrode is intended for laboratories that need a robust, easy-to-use pH electrode for routine measurement in aqueous samples. The composite design integrates the pH indicator and reference function in one electrode body, reducing setup complexity during daily calibration and measurement work.
This electrode is especially useful when a laboratory pH meter accepts a standard BNC(Q9) electrode input. Compatibility should always be confirmed before ordering, because pH meter connector formats and electrode accessories may vary between instruments.
Key features
- Standard pH composite electrode for routine laboratory pH measurement.
- Ag/AgCl reference system for stable everyday electrochemical workflows.
- pH range 0–14 for general aqueous sample measurement.
- 3 M KCl fill solution for the reference system.
- Polycarbonate body for practical laboratory handling.
- Single fabric junction and Ø12 × 120 mm body format.
- BNC(Q9) connector for compatible laboratory pH meters.
Suitable for
- Routine pH measurement in water quality laboratories.
- General laboratory electrochemistry workflows.
- Teaching laboratories and practical pH calibration exercises.
- General aqueous sample pH testing with compatible instruments.
- Replacement electrode configurations for meters using BNC(Q9) electrode input.
- Laboratories that need a durable polycarbonate electrode instead of a more fragile glass-body format.
Laboratory pH Electrode for pH Meter | COLO.Science
TECHNICAL SPECIFICATIONS — PRO6134 PH COMPOSITE ELECTRODE
| Model / SKU | PRO6134 |
| Product type | pH composite electrode |
| Electrode structure | pH indicator electrode + reference electrode |
| pH range | 0–14 pH |
| Reference type | Ag/AgCl |
| Fill solution | 3 M KCl |
| Body / sensor material | Polycarbonate |
| Junction material | Single fabric |
| Working temperature | 5–60 °C |
| Dimension | Ø12 × 120 mm |
| Connector type | BNC(Q9) |
Final measurement performance depends on the pH meter, electrode condition, buffer quality, sample matrix, temperature conditions, storage procedure and laboratory method. Connector compatibility must be confirmed before quotation.
Composite electrode structure and practical laboratory use
pH indicator electrode
The pH-sensitive element provides the measurement signal for routine pH determination within the specified 0–14 pH range.
Ag/AgCl reference
The integrated Ag/AgCl reference system with 3 M KCl fill solution supports stable routine pH measurement when the electrode is correctly calibrated, stored and maintained.
Single fabric junction
The single fabric junction supports consistent electrolyte contact for everyday laboratory measurement and helps reduce routine handling complexity.
VISUAL REFERENCE — ELECTRODE, MATERIAL AND CONNECTOR
PRO6134 electrode body, polycarbonate sensor material and BNC(Q9) connector
Main electrode: PRO6134 pH composite electrode with integrated pH indicator and Ag/AgCl reference system.
Sensor material: polycarbonate electrode body material for practical routine laboratory use.
Connector detail: BNC(Q9) connector for compatible laboratory pH meters. Meter compatibility must be confirmed before ordering.
COLO.SCIENCE VIDEO
PRO6134 video presentation is in preparation
The video will present electrode structure, BNC(Q9) connection, calibration workflow, electrode storage, routine maintenance and practical use with compatible COLO.Science pH meters.
COLO.SCIENCE ELECTROCHEMISTRY
Match PRO6134 with compatible pH meters and electrochemical instruments
PRO6134 should be selected together with the meter input configuration. Use the electrochemical instruments overview and pH meter section to confirm compatible instrument families, pH electrode inputs, connector formats and required accessories.
| Electrochemical Instruments | pH Meters |
COLO.SCIENCE KNOWLEDGE / OUTBOUND LINK
Learn more about pH measurement, calibration and water quality analysis
Correct pH measurement depends on electrode selection, calibration buffers, temperature conditions, storage solution, sample type and routine maintenance. Explore additional electrochemistry and water quality resources before selecting the final configuration.
| Read on COLO.Science → | NIST reference → |
Applications and laboratory value
Water quality laboratories
PRO6134 is suitable for routine pH measurement in water quality workflows where a standard composite electrode and compatible BNC(Q9) pH meter are required.
Routine laboratory pH testing
The composite electrode configuration helps reduce setup complexity and supports practical pH measurement with compatible benchtop or portable pH meters.
Education and training
PRO6134 is useful for teaching pH electrode structure, reference systems, calibration practice and basic electrochemical measurement principles.
Replacement electrode selection
The electrode is relevant when the existing meter requires a standard BNC(Q9) pH electrode connector and the application fits the 0–14 pH and 5–60 °C operating profile.
How to choose the correct pH composite electrode configuration
When selecting the PRO6134 pH composite electrode, the complete measurement setup should be checked, not only the pH range. Confirm the meter model, BNC(Q9) pH input, sample type, required temperature conditions, buffer set and routine calibration procedure before ordering.
COLO.Science can help match PRO6134 with compatible pH meters, calibration buffers, electrode storage solutions and accessories so that the final configuration supports the intended laboratory method and daily measurement workflow.
PRO6134 pH composite electrode for daily laboratory pH measurement
The PRO6134 pH composite electrode is a practical electrode for laboratories that need a standard sensor assembly for pH measurement and reference function in one body. The polycarbonate construction supports routine handling, while the Ag/AgCl reference system and 3 M KCl fill solution make it suitable for everyday laboratory pH work.
In daily use, the quality of pH measurement depends on more than the electrode specification. Buffer freshness, calibration frequency, sample temperature, electrode storage, junction condition and the selected pH meter all influence measurement stability. PRO6134 provides a compact pH composite electrode platform, while the final laboratory setup should be defined as a complete pH measurement system.
Configuration notice
pH electrodes may be delivered or used in different configurations depending on the selected pH meter, connector/cable arrangement, calibration solutions, storage solution and accessories. The official quotation defines the final scope of supply. Website content is provided for general product presentation and may not represent the exact delivered configuration. Specifications may change without notice.





