pH Composite Electrode (Low Maintenance) · Premium Unfillable · BNC(Q9) · 0–14 pH
Low Maintenance pH Electrode (Unfillable) 0–14 pH
OVERVIEW
This premium low‑maintenance pH composite electrode is designed for users who want reliable pH measurements without the hassle of regular refilling. The unfillable design eliminates the need for electrolyte replenishment, while the open junction (free‑flowing aperture) ensures stable contact with samples and prevents clogging, even in demanding applications. The polycarbonate body provides durability and chemical resistance.
Combining pH indicator and reference electrode in one body, it features a Longlife reference system for extended service life, an open junction design, and a robust polycarbonate construction. With a full pH range 0–14, working temperature up to 80 °C, and a standard BNC(Q9) connector, this electrode is ideal for routine laboratory, educational, and industrial applications where minimal maintenance is desired.
Premium low‑maintenance pH electrode – unfillable, open junction, BNC(Q9) featuring Longlife reference and polycarbonate body. pH range 0–14, 0–80 °C — ideal for routine lab work with minimal upkeep.COLO.Science · Practical and robust equipment for everyday laboratory workflows.
COLO.SCIENCE KNOWLEDGE
Practical notes for low‑maintenance pH electrodes
Explore technical insights on unfillable electrode designs, open‑junction technology, and how to achieve reliable pH measurements with minimal routine care. Perfect for busy laboratories.
Product Overview
The low‑maintenance pH electrode is engineered to deliver accurate pH readings without the need for electrolyte refilling. Its unfillable construction means no maintenance of fill solution – simply use and store. The open junction design provides a large, free‑flowing aperture that ensures stable liquid junction potential and resists clogging, making it suitable for samples with suspended solids or proteins. The polycarbonate body is impact‑resistant and compatible with a wide range of aqueous solutions.
Compatibility notice — connector and meter matching are essential
This electrode features a standard BNC(Q9) connector, widely used on most pH meters. Always verify that your meter accepts BNC input. For meters with S7 connector, an S7‑BNC(Q9) cable is available separately.
Key Features
Unfillable Design
pH Range 0–14
Longlife Reference
Open Junction
Polycarbonate Body
0–80 °C
BNC(Q9) Connector
Electrode
Designed for effortless routine pH measurement
No Electrolyte Refilling
Unfillable design eliminates the need for regular KCl top‑ups, reducing maintenance and downtime.
Open Junction Technology
Free‑flowing aperture ensures stable potential and prevents clogging, even in dirty or protein‑containing samples.
Longlife Reference
Extended‑life reference system provides long‑term stability, making it ideal for high‑throughput labs.
Electrode Design
- Low‑maintenance composite design
- Combines pH indicator and reference electrode
- Unfillable – no electrolyte refilling needed
- Open junction for clog‑free operation
Materials & Reference System
- Sensor material: Polycarbonate
- Reference type: Longlife Reference
- Junction material: Open (free‑flowing aperture)
- Fill solution: unfillable
Operating Conditions & Connection
- pH range: 0–14
- Working temperature: 0–80 °C
- Dimensions: Φ12×120 mm
- Connector type: BNC(Q9)
Technical Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Model | – | Name | pH composite electrode (Low Maintenance) |
| pH Range | 0–14 | Fill Solution | unfillable |
| Sensor material | Polycarbonate | Working Temp. | 0–80 °C |
| Junction material | Open | Reference Type | Longlife Ref. |
| Dimension | Φ12×120 mm | Connector Type | BNC(Q9) |
Note: Please verify connector and meter compatibility before purchase. This electrode has a standard BNC(Q9) connector. For meters with S7 input, an S7‑BNC(Q9) cable is available separately.
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 |
|---|---|
| BNC(Q9) | This electrode features a standard BNC(Q9) connector. Directly compatible with most pH meters. |
| S7 | For meters with S7 input, use an S7-BNC(Q9) cable (available separately). |
Low‑Maintenance pH Composite Electrode
A premium unfillable pH electrode with open junction, Longlife reference, and BNC(Q9) connector for routine lab work without maintenance hassles — supported by COLO.Science.
COLO.Science · Practical and robust equipment for everyday laboratory workflows.
