Alkali Resistance pH Composite Electrode — Glass Sensor for Routine pH Measurement
OVERVIEW
The alkali resistance pH composite electrode is designed for routine pH measurement where durable and dependable electrode performance is required. Its most important product identity is its alkali-resistant pH measuring design, combined with a glass sensor, ceramic junction and Longlife reference system for practical laboratory work.
This model is a pH composite electrode, meaning it combines the pH indicator electrode and reference electrode in one body. With 0–14 pH range, 3 M KCl fill solution, 0–80 °C working temperature, Φ12 × 120 mm dimensions and S7 connector, it is a practical option for compatible pH meters used in routine laboratory analysis.
Alkali resistance pH composite electrode for reliable routine pH measurement with glass sensor, ceramic junction, Longlife reference, 0–14 pH range and S7 connection. A practical electrode for laboratories that want a robust composite pH sensor for everyday work.COLO.Science · Practical and robust equipment for everyday laboratory workflows.
COLO.SCIENCE KNOWLEDGE
Practical notes for pH electrodes and routine electrochemistry
Explore practical guidance on pH electrodes, calibration, connector matching, temperature effects and everyday electrochemistry workflows in the laboratory.
Product Overview
This alkali resistance pH composite electrode is intended for users who want a practical composite electrode construction combined with a glass sensing element and standard electrochemical performance characteristics. Within the general pH electrode family, a pH indicator electrode requires a separate reference electrode, while a composite electrode combines both into one body. This model belongs to that composite class and is positioned around alkali resistance as its key product identity.
Main characteristic — alkali resistance
The main feature that should be emphasized for this electrode is its alkali resistance. Combined with a glass sensor material, ceramic junction and Longlife reference system, it is presented as a practical composite pH electrode for routine laboratory applications where stable and dependable pH measurement is needed.
Key Features
Composite Electrode
Glass Sensor
Ceramic Junction
Longlife Ref.
0–14 pH
0–80 °C
3 M KCl
S7 Connector
Alkali
Designed for practical routine pH work
Composite Electrode Construction
This model combines the pH indicator electrode and reference electrode in one body for practical and straightforward routine measurement.
Glass Sensor with Ceramic Junction
The stated glass sensor material and ceramic junction define the core electrochemical construction of this electrode.
Compatible S7 Connection
The electrode is specified with S7 connector and should be matched with a compatible pH meter or S7-BNC(Q9) cable configuration where applicable.
Electrode Type
- pH composite electrode
- Combines pH indicator electrode and reference electrode
- Positioned around alkali resistance
- Suitable for routine pH measurement work
Materials & Reference
- Sensor material: Glass
- Junction material: Ceramic
- Reference type: Longlife Ref.
- Fill solution: 3 M KCl
Operating Conditions
- pH range: 0–14
- Working temperature: 0–80 °C
- Dimensions: Φ12 × 120 mm
- Connector type: S7
Technical Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Model | — | Name | pH composite electrode (Alkali resistance) |
| pH Range | 0–14 | Fill Solution | 3 M KCl |
| Sensor material | Glass | Working Temp. | 0~80 ℃ |
| Junction material | Ceramic | Reference Type | Longlife Ref. |
| Dimension | Φ12×120 mm | Connector Type | S7 |
Note: The model code was not provided in the source specification. Connector compatibility with the pH meter should always be confirmed before ordering.
General Electrode Notes
- pH electrodes include pH indicator electrodes, composite electrodes and 3 in 1 pH composite electrodes.
- A pH indicator electrode must cooperate with a separate reference electrode.
- A composite electrode combines the pH indicator electrode and reference electrode.
- A 3 in 1 pH composite electrode combines the pH indicator electrode, reference electrode and temperature probe.
- Temperature probes can adjust pH measurements by correcting electrode slope according to measured temperature.
- The connector must be compatible with the meter you are using.
Connector Options & Compatibility
Different pH meters may require different connector formats. Confirm the correct connector before purchase.
| Connector / Option | Notes |
|---|---|
| S7 | Specified connector for this electrode model. |
| S7-BNC(Q9) cable | Used where the pH meter configuration requires S7 to BNC(Q9) adaptation. |
| BNC(Q9) | Mentioned as a family connector option, depending on the meter and cable configuration. |
Alkali Resistance pH Composite Electrode
A practical alkali resistance pH composite electrode with glass sensor, ceramic junction, Longlife reference and S7 connector for compatible pH meters — supported by COLO.Science.
COLO.Science · Practical and robust equipment for everyday laboratory workflows.




