pH Composite Electrode (Slender) · Φ6×100 mm Tip · S7 Connector · 0–14 pH
Slender pH composite electrode with ultra‑thin 6 mm tip for small volumes
OVERVIEW
This slender pH composite electrode features an ultra‑thin measuring tip of 6 mm diameter and 100 mm length, making it ideal for pH measurements in small volumes, test tubes, cuvettes, or narrow‑necked vessels where standard electrodes cannot fit. The slim tip allows insertion into containers with minimal sample requirements – down to a few millilitres – without compromising accuracy.
Combining pH indicator and reference electrode in one body, it offers a full pH range 0–14, working temperature up to 60 °C, and is filled with 3 M KCl. The glass body and ceramic junction ensure excellent chemical resistance and stable performance. The S7 connector (requires an S7‑BNC(Q9) cable for meters with BNC input) provides compatibility with a wide range of laboratory pH meters.
Slender pH electrode with 6 mm tip for small volumes, test tubes, and narrow vessels. Features glass body, ceramic junction, Longlife reference, and S7 connector. pH 0–14, 0–60 °C — ideal for micro‑samples and confined spaces.COLO.Science · Practical and robust equipment for everyday laboratory workflows.
COLO.SCIENCE KNOWLEDGE
Practical notes for small‑volume pH measurement
Discover technical insights on using slender pH electrodes in micro‑samples, test tubes, and cuvettes. Learn about proper handling, sample size requirements, and best practices for accurate readings in limited volumes.
Product Overview
The slender pH composite electrode is engineered for applications where sample volume is limited or vessel openings are narrow. Its 6 mm diameter measuring tip (100 mm length) easily fits into standard test tubes, cuvettes, and small flasks, allowing pH measurement with as little as 2–3 mL of sample. The robust glass body and ceramic junction deliver reliable performance across the full pH range, while the Longlife reference system ensures long‑term stability and minimal maintenance.
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
Small Volume Samples (2–3 mL)
Test Tube Compatible
pH Range 0–14
Glass Body
Ceramic Junction
Longlife Reference
0–60 °C
3 M KCl Fill
S7 Connector
Electrode
Designed for small volumes and narrow vessels
Minimal Sample Volume
The 6 mm tip requires only 2–3 mL of sample for accurate measurement – perfect for precious, limited, or expensive samples.
Test Tube & Cuvette Compatible
Fits easily into standard test tubes (10–16 mm diameter) and cuvettes, allowing direct measurement without transferring samples.
Robust Glass Construction
The durable glass body withstands routine laboratory use and offers excellent chemical resistance across the entire pH range.
Electrode Design
- Slender composite electrode
- Combines pH indicator and reference electrode
- Ultra‑thin 6 mm tip diameter
- 100 mm tip length for reaching sample
- Overall body diameter 12 mm for handling
Materials & Reference System
- Sensor material: Glass
- Reference type: Longlife Reference
- Junction material: Ceramic
- Fill solution: 3 M KCl
Operating Conditions & Connection
- pH range: 0–14
- Working temperature: 0–60 °C
- Dimensions: Φ6×100 mm (tip) / Φ12×60 mm (body)
- Connector type: S7 (requires S7‑BNC(Q9) cable for BNC meters)
Technical Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Model | – | Name | pH composite electrode (Slender) |
| pH Range | 0–14 | Fill Solution | 3 M KCl |
| Sensor material | Glass | Working Temp. | 0–60 °C |
| Junction material | Ceramic | Reference Type | Longlife Ref. |
| Dimension | Φ6×100 mm (tip) / Φ12×60 mm (body) | 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. |
Slender pH Electrode for Small Volumes
A slender pH electrode with a 6 mm diameter tip for measurements in small volumes, test tubes, and cuvettes. Features glass body, ceramic junction, Longlife reference, and S7 connector — supported by COLO.Science.
COLO.Science · Practical and robust equipment for everyday laboratory workflows.
