COLO.Science — WATER QUALITY / ELECTROCHEMISTRY — PRO6150
Alkali Resistance pH Electrode PRO6150
PRO6150 alkali resistance pH electrode is a composite pH electrode for compatible laboratory pH meters. It combines the pH indicator electrode and reference electrode in one practical sensor body. With a 0–14 pH range, 3 M KCl fill solution, glass sensor, ceramic junction, Longlife reference system, 0–80 °C working temperature and S7 connector, PRO6150 is designed for routine pH measurement where an alkali-resistant glass composite electrode is required.
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COLO.SCIENCE — PH ELECTRODES / ELECTROCHEMISTRY / WATER QUALITY
Composite alkali resistance pH electrode with glass sensor and S7 connection
The PRO6150 alkali resistance pH electrode is intended for laboratories that need a robust composite pH sensor for routine measurement in compatible pH meter systems. The electrode combines a glass sensing element, ceramic junction and Longlife reference design in a standard Ø12 × 120 mm body.
This electrode is specified with an S7 connector. The final cable arrangement should be confirmed before ordering, especially when the pH meter requires an S7 to BNC(Q9) cable or another compatible connection setup.
Key features
- Alkali resistance pH electrode for routine laboratory pH measurement.
- pH composite electrode combining pH indicator and reference electrode functions.
- Glass sensor material with ceramic junction.
- Longlife reference system for practical routine workflows.
- pH range 0–14 for general laboratory measurement.
- 3 M KCl fill solution for the reference system.
- 0–80 °C working temperature and Ø12 × 120 mm body format.
- S7 connector for compatible pH meter cable configurations.
Suitable for
- Routine pH measurement in water quality laboratories.
- Laboratory electrochemistry workflows requiring a composite pH electrode.
- General aqueous sample pH testing with compatible instruments.
- Teaching laboratories and pH calibration practice.
- Replacement electrode configurations where S7 electrode connection is required.
- Laboratories that need an alkali-resistant glass pH sensor for everyday work.
TECHNICAL SPECIFICATIONS — PRO6150 ALKALI RESISTANCE PH ELECTRODE
| Model / SKU | PRO6150 |
| Product type | pH composite electrode — alkali resistance |
| Electrode structure | pH indicator electrode + reference electrode |
| pH range | 0–14 pH |
| Reference type | Longlife Ref. |
| Fill solution | 3 M KCl |
| Sensor material | Glass |
| Junction material | Ceramic |
| Working temperature | 0–80 °C |
| Dimension | Ø12 × 120 mm |
| Connector type | S7 |
Final measurement performance depends on the pH meter, electrode condition, calibration buffer quality, sample matrix, temperature, storage procedure and laboratory method. Connector compatibility must be confirmed before quotation.
Composite pH electrode structure and practical laboratory use
Glass pH sensor
The glass sensing element provides the pH measurement signal across the specified 0–14 pH range for routine laboratory analysis.
Ceramic junction
The ceramic junction supports the electrochemical reference contact between the internal reference system and the measured sample.
Longlife reference
The Longlife reference system with 3 M KCl fill solution is intended for dependable routine pH electrode workflows when the electrode is correctly stored and maintained.
VISUAL REFERENCE — ELECTRODE AND CONNECTOR
PRO6150 electrode body and S7 connector cable reference
Main electrode: PRO6150 alkali resistance pH composite electrode with glass sensor, ceramic junction and Longlife reference system.
Connector reference: S7 connector cable configuration. Confirm meter-side connector requirements before ordering.
COLO.SCIENCE VIDEO
PRO6150 video presentation is in preparation
The video will present electrode structure, S7 connection, calibration workflow, electrode storage and practical use with compatible COLO.Science pH meters.
COLO.SCIENCE ELECTROCHEMISTRY
Match PRO6150 with compatible pH meters and electrochemical instruments
PRO6150 should be selected together with the meter input configuration. Use the electrochemical instruments overview and pH meter section to confirm compatible instrument families, electrode inputs, S7 cable requirements 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, 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
PRO6150 is suitable for routine pH measurement in water quality workflows where a composite glass pH electrode and dependable S7 connection are required.
Routine laboratory pH testing
The composite electrode configuration helps simplify routine pH measurement because the pH indicator and reference functions are integrated in one electrode body.
Education and training
PRO6150 is useful for teaching pH electrode structure, reference systems, calibration practice and the importance of electrode care in electrochemical measurement.
Replacement electrode selection
The electrode is relevant when the existing meter or cable setup accepts an S7 electrode configuration for pH measurement.
How to choose the correct alkali resistance pH electrode configuration
When selecting the PRO6150 alkali resistance pH electrode, the complete measurement setup should be checked, not only the pH range. Confirm the meter model, S7 cable requirement, sample type, expected temperature conditions, required calibration procedure and routine electrode maintenance practice before ordering.
COLO.Science can help match PRO6150 with compatible pH meters, S7-BNC(Q9) cable configurations, calibration buffers, electrode storage solutions and accessories so that the final configuration supports the intended laboratory method and daily measurement workflow.
Alkali resistance pH electrode for daily laboratory pH measurement
The alkali resistance pH electrode PRO6150 is a practical composite electrode for laboratories that need a glass pH sensor with ceramic junction, Longlife reference system and S7 connection. The product is positioned for routine pH measurement where stable electrode behaviour, proper calibration and correct connector matching are important parts of daily laboratory 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. PRO6150 provides an alkali-resistant composite pH 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 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.





