pH Composite Electrode Long · Φ12×260 mm · S7 Connector · 0–14 pH
pH Composite Electrode Long Φ12×260 mm
OVERVIEW
This long pH composite electrode features an extended length of 260 mm with a slim diameter of 12 mm, making it ideal for measurements in deep vessels, tall containers, or narrow tubes where standard electrodes cannot reach. The all‑glass construction ensures excellent chemical resistance, while the ceramic junction and Longlife reference system provide stable and reliable performance over time.
Combining pH indicator and reference electrode in one body, it offers a full pH range 0–14, working temperature up to 80 °C, and is filled with 3 M KCl. The S7 connector (requires an S7‑BNC(Q9) cable for meters with BNC input) ensures compatibility with a wide range of laboratory pH meters.
Long pH electrode (260 mm) with slim 12 mm diameter for deep vessels and narrow containers. Features glass body, ceramic junction, Longlife reference, and S7 connector. pH 0–14, 0–80 °C — ideal for demanding laboratory and industrial applications.COLO.Science · Practical and robust equipment for everyday laboratory workflows.
COLO.SCIENCE KNOWLEDGE
Practical notes for long‑stem pH electrodes
Discover technical insights on using extended‑length electrodes for deep‐vessel measurements, proper handling of slim glass bodies, and best practices for maintaining accurate pH readings in challenging setups.
Product Overview
The long pH composite electrode is specifically designed for applications that require reaching the bottom of deep containers, tall fermentation vessels, or narrow tubing. With its 260 mm length and 12 mm diameter, it easily fits into tight spaces while maintaining the robust glass construction typical of high‑quality pH electrodes. The ceramic junction ensures stable electrolyte flow, and the Longlife reference system guarantees long‑term reliability.
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
Slim 12 mm diameter
pH Range 0–14
Glass Body
Ceramic Junction
Longlife Reference
3 M KCl Fill
0–80 °C
S7 Connector
Electrode
Designed for deep vessels and narrow containers
Extended Reach
260 mm length allows measurement at the bottom of tall vessels, large flasks, or deep tanks where standard electrodes cannot reach.
Slim Profile
12 mm diameter fits into narrow test tubes, cuvettes, or small openings, making it versatile for various laboratory glassware.
Robust Glass Construction
The durable glass body withstands routine laboratory use and offers excellent chemical resistance across the full pH range.
Electrode Design
- Long composite electrode (260 mm)
- Combines pH indicator and reference electrode
- Slim 12 mm diameter for narrow openings
- All‑glass body for durability
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: 0–80 °C
- Dimensions: Φ12×260 mm
- Connector type: S7 (requires S7‑BNC(Q9) cable for BNC meters)
Technical Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Model | – | Name | pH composite electrode Long |
| pH Range | 0–14 | Fill Solution | 3 M KCl |
| Sensor material | Glass | Working Temp. | 0–80 °C |
| Junction material | Ceramic | Reference Type | Longlife Ref. |
| Dimension | Φ12×260 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. |
Long pH Composite Electrode (260 mm)
An extended‑length pH electrode with slim 12 mm diameter for deep vessels and narrow containers. Features glass body, ceramic junction, Longlife reference, and S7 connector — supported by COLO.Science.
COLO.Science · Practical and robust equipment for everyday laboratory workflows.
