pH Premium Glass Electrode for Ultra-Pure Water / Tris · 0–11 pH · S7 Connector · 185 mm
pH Premium Glass Electrode for Ultra-Pure Water
OVERVIEW
This premium glass pH electrode is specially designed for accurate pH measurements in ultra-pure water (low conductivity) and Tris buffer solutions, where conventional electrodes often exhibit slow response, drift, or poor stability. The unmovable glass grinding mouth junction ensures stable liquid junction potential even in deionized water, while the Longlife reference system guarantees long-term reliability.
With a pH range of 0–11, working temperature up to 80 °C, and an extended length of 185 mm (12 mm diameter), this electrode is ideal for demanding applications in pharmaceutical, semiconductor, biotechnology, and research laboratories. The S7 connector (requires an S7‑BNC(Q9) cable for meters with BNC input) ensures compatibility with a wide range of laboratory pH meters.
Premium glass pH electrode for ultra-pure water and Tris buffers featuring unmovable glass grinding junction, Longlife reference, and 185 mm length. pH 0–11, 0–80 °C, S7 connector — ideal for pharmaceutical, semiconductor, and research applications.COLO.Science · Practical and robust equipment for everyday laboratory workflows.
COLO.SCIENCE KNOWLEDGE
Practical insights for pH measurement in ultra-pure water and Tris buffers
Explore technical articles on low-conductivity pH measurement, Tris buffer compatibility, glass grinding junction technology, and best practices for accurate readings in pharmaceutical and biotechnology laboratories.
Product Overview
The premium glass pH electrode for ultra-pure water and Tris is engineered to overcome the challenges of measuring pH in low-conductivity media and Tris buffer solutions. The unmovable glass grinding mouth junction provides a stable, clog‑free liquid junction with minimal electrolyte leakage, ensuring fast response and drift‑free readings even in deionized water. The Longlife reference system extends electrode lifetime, reducing maintenance and replacement frequency. With a length of 185 mm and a diameter of 12 mm, it fits standard laboratory glassware and reaches the bottom of deep vessels.
Compatibility notice — connector and meter matching are essential
This electrode features an S7 connector and requires an S7‑BNC(Q9) cable for use with meters having BNC input. Please confirm compatibility with your meter before ordering. For meters with direct S7 input, no cable is needed.
Key Features
Tris Buffer Compatible
pH Range 0–11
Glass Body
Unmovable Glass Grinding Junction
Longlife Reference
0–80 °C
185 mm Length
3 M KCl Fill
S7 Connector
Electrode
Designed for challenging low-conductivity and Tris buffer measurements
Ultra-Pure Water Stability
The unmovable glass grinding junction ensures stable potential and fast response in deionized water, where conventional electrodes often drift.
Tris Buffer Compatibility
Specially formulated glass membrane and reference system provide accurate and stable readings in Tris buffers, avoiding common interference issues.
Extended Length
185 mm length reaches the bottom of deep vessels, fermentation tanks, or tall flasks, while the 12 mm diameter fits standard openings.
Electrode Design
- Premium composite electrode for ultra-pure water
- Combines pH indicator and reference electrode
- Unmovable glass grinding mouth junction
- Extended 185 mm length for deep vessels
Materials & Reference System
- Sensor material: Glass
- Reference type: Longlife Reference
- Junction material: Unmovable glass grinding mouth
- Fill solution: 3 M KCl
Operating Conditions & Connection
- pH range: 0–11
- Working temperature: 0–80 °C
- Dimensions: Φ12×185 mm
- Connector type: S7 (requires S7‑BNC(Q9) cable for BNC meters)
Technical Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Model | – | Name | pH composite electrode (Ultrapure water) |
| pH Range | 0–11 | Fill Solution | 3 M KCl |
| Sensor material | Glass | Working Temp. | 0–80 °C |
| Junction material | Unmovable glass grinding mouth | Reference Type | Longlife Ref. |
| Dimension | Φ12×185 mm | Connector Type | S7 |
Note: Please verify connector and meter compatibility before purchase. This electrode has an S7 connector and requires an S7‑BNC(Q9) cable for use with meters having BNC input. Exact supplied configuration may vary depending on quotation and application.
General Electrode Notes
- pH electrodes are available as pH indicator electrode, composite electrode, and 3 in 1 pH composite electrode (with temperature probe).
- A pH indicator electrode needs to 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 the electrode slope according to the measured temperature.
- The connector must be compatible with the meter you are using. Options include S7 [S7-BNC(Q9) cable] and BNC(Q9).
Connector Options & Compatibility
Different meters may require different connection formats. Always confirm connector type before ordering.
| Connector / Option | Notes |
|---|---|
| S7 | This electrode features S7 connector. Use with S7‑BNC(Q9) cable for meters with BNC input. |
| BNC(Q9) | Common pH electrode connector format. Can be adapted via S7‑BNC(Q9) cable. |
pH Premium Glass Electrode for Ultra-Pure Water / Tris
A specialized glass pH electrode for ultra-pure water and Tris buffers with unmovable glass grinding junction, Longlife reference, and 185 mm length — supported by COLO.Science.
COLO.Science · Practical and robust equipment for everyday laboratory workflows.
