pH Composite Electrode (RoHS) · Lead‑Free Glass · 0–14 pH · S7 Connector · Φ12×120 mm
Lead‑Free Glass · 0–14 pH Composite Electrode (RoHS) Φ12×120 mm
OVERVIEW
This pH composite electrode (RoHS) is manufactured with lead‑free glass, complying with the Restriction of Hazardous Substances Directive (RoHS) for environmentally friendly laboratory practice. Despite the absence of lead, the glass formulation maintains excellent performance characteristics, delivering accurate and stable pH measurements across the full range.
With a pH range of 0–14, working temperature up to 80 °C, and standard dimensions of Φ12×120 mm, this electrode fits most laboratory glassware. The ceramic junction ensures stable liquid junction potential, while the Longlife reference system provides extended electrode lifetime and minimal drift. The S7 connector (requires an S7‑BNC(Q9) cable for meters with BNC input) ensures compatibility with a wide range of pH meters. Ideal for laboratories committed to sustainable and environmentally responsible practices.
RoHS‑compliant pH electrode with lead‑free glass featuring ceramic junction, Longlife reference, and S7 connector. pH 0–14, 0–80 °C, Φ12×120 mm — ideal for environmentally conscious laboratories.COLO.Science · Practical and robust equipment for everyday laboratory workflows.
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Product Overview
The RoHS‑compliant pH composite electrode is manufactured with lead‑free glass, meeting strict environmental regulations without compromising performance. The glass formulation has been carefully developed to provide the same high level of accuracy, stability, and chemical resistance as traditional lead‑containing glasses. The ceramic junction ensures stable liquid junction potential, and the Longlife reference system guarantees long‑term reliability with minimal maintenance. With standard Φ12×120 mm dimensions, it fits seamlessly into common laboratory setups, making it an ideal choice for environmentally responsible laboratories.
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
Lead‑Free Glass
pH Range 0–14
Glass Body
Ceramic Junction
Longlife Reference
0–80 °C
3 M KCl Fill
Φ12×120 mm
S7 Connector
Electrode
Designed for sustainable laboratory practice
Environmentally Responsible
Manufactured with lead‑free glass, fully compliant with RoHS directives for safer disposal and reduced environmental impact.
Reliable Performance
Advanced lead‑free glass formulation delivers the same accuracy and stability as traditional glass electrodes.
Long‑Term Stability
The Longlife reference system ensures extended electrode lifetime and reduces calibration frequency.
Electrode Design
- RoHS‑compliant composite electrode
- Combines pH indicator and reference electrode
- Lead‑free glass body
- Standard Φ12×120 mm dimensions
Materials & Reference System
- Sensor material: Lead‑free 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: Φ12×120 mm
- Connector type: S7 (requires S7‑BNC(Q9) cable for BNC meters)
Technical Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Model | – | Name | pH composite electrode (RoHS) |
| pH Range | 0–14 | Fill Solution | 3 M KCl |
| Sensor material | Lead‑free glass | Working Temp. | 0–80 °C |
| Junction material | Ceramic | Reference Type | Longlife Ref. |
| Dimension | Φ12×120 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 Composite Electrode (RoHS) – Lead‑Free Glass
An environmentally responsible pH electrode with lead‑free glass, RoHS compliant, featuring ceramic junction, Longlife reference, and S7 connector — supported by COLO.Science.
COLO.Science · Practical and robust equipment for everyday laboratory workflows.





