COLO.Science · Technical Specification
PRO6142
pH Composite Electrode (Low Maintenance)
Premium unfillable pH electrode · Longlife reference · Open junction · BNC(Q9)
PRO6142 pH Composite Electrode (Low Maintenance) is a premium unfillable pH electrode for routine laboratory, educational and industrial pH measurement workflows where reduced maintenance is required. The electrode combines a polycarbonate body, Longlife reference system, open junction, unfillable construction and standard BNC(Q9) connector in a compact Φ12×120 mm format.
pH composite electrode Low maintenance Unfillable Longlife reference Open junction Polycarbonate body pH 0-14 0-80 °C Φ12×120 mm BNC(Q9)
Document type: Technical Specification Sheet
Product family: Electrochemical Instruments / pH Electrodes
Model / SKU: PRO6142
Product section: colo.si/products/electrochemical-instruments/
Format: A4 landscape · COLO.Science TechSpec v2.4 with navigation links
PRO6142 low maintenance pH composite electrode with BNC Q9 connector
PRO6142 · low-maintenance premium unfillable pH composite electrode · main electrode view
Model / SKU PRO6142
pH electrode
Address / HQ Polje ob Sotli 4
SI-3255, Slovenia
Page 1 / 5
COLO.Science logo PRO6142 · Low Maintenance pH Composite Electrode
Technical data sheet · Informational document · Controlled electronic document
Product section: Electrochemical instruments on colo.si
PRO6142 · technical specification Premium unfillable low-maintenance pH composite electrode for routine pH measurement
pH range 0-14 Working temp. 0-80 °C Longlife Ref. Open junction BNC(Q9) - Low-maintenance pH electrode for busy laboratory workflows
Product Overview
Application profile
Routine laboratory pH: suitable for aqueous samples, daily QC checks, education and general bench measurements.
Reduced maintenance: unfillable construction removes routine electrolyte refilling and simplifies handling.
Difficult routine samples: open junction design helps reduce clogging risk in samples with suspended solids or proteins.
Industrial and educational use: polycarbonate body supports practical handling in busy laboratory and training environments.
Design and handling advantage
Composite design: pH indicator and reference electrode functions are combined in one practical probe.
Unfillable system: no electrolyte top-up is required during normal use.
Longlife reference: designed for extended service stability in routine pH measurement.
Standard format: Φ12×120 mm body fits common electrode holders, laboratory stands and sample vessels.
Key features
pH measurement: full pH 0-14 application range for general aqueous sample work.
Reference system: Longlife reference for long-term stability in routine measurement.
Junction: open, free-flowing aperture for stable sample contact and reduced clogging risk.
Maintenance: premium unfillable design eliminates regular fill-solution replenishment.
Connection: BNC(Q9) connector for direct use with compatible laboratory and portable pH meters.
Temperature: specified for 0-80 °C working conditions.
Core technical summary
ParameterSpecification
Model / SKUPRO6142
Electrode typepH composite electrode (Low Maintenance)
Body / sensor materialPolycarbonate
Reference typeLonglife Ref.
Junction materialOpen
Fill solutionUnfillable
pH range0-14
Working temperature0-80 °C
DimensionsΦ12×120 mm
ConnectorBNC(Q9)
pH range0-14
MaintenanceUnfillable
ReferenceLonglife Ref.
ConnectorBNC(Q9)
Page 2 / 5
Technical Specifications
Electrode construction and measurement profile
ParameterSpecification
Product namepH Composite Electrode (Low Maintenance), Premium Unfillable
Model / SKUPRO6142
Electrode typepH composite electrode
Measurement parameterpH
pH range0-14 pH
Working temperature0-80 °C
Body / sensor materialPolycarbonate
Reference typeLonglife Ref.
Junction materialOpen junction / free-flowing aperture
Fill solutionUnfillable
DimensionsΦ12×120 mm
Connector typeBNC(Q9)
Compatibility and use notes
TopicTechnical note
Meter inputDesigned for pH meters with BNC / Q9 electrode input.
S7 metersFor meters with S7 input, use an S7-BNC(Q9) cable if compatible with the instrument.
Temperature compensationThis is a pH electrode. Temperature compensation depends on the connected meter and separate temperature probe configuration.
StorageStore according to pH electrode maintenance practice; avoid dry storage of the sensitive membrane.
CalibrationCalibrate with fresh pH buffers according to the laboratory method and expected sample range.
Product selection table
Selection itemSpecification / guidance
Recommended useRoutine laboratory pH measurement where low maintenance and clogging resistance are important.
Best fitEducation, routine QC, water-quality checks, process sample screening and standard bench measurement.
Handling advantagePolycarbonate body improves robustness compared with fragile glass-body designs.
Reference designLonglife reference system for extended routine stability.
Junction behaviorOpen junction / free-flowing aperture for improved contact with samples and reduced clogging risk.
Instrument matchCompatible with pH meters accepting BNC(Q9) pH electrode input.
Product sectionOpen electrochemical instruments section
Request quoteContact COLO.Science for configuration confirmation
Specification note
Connector matching: confirm that the pH meter has a BNC(Q9) pH input before ordering.
Application range: for aggressive chemicals, high ionic strength samples or non-aqueous samples, confirm whether a specialized electrode is required.
Quotation control: final supplied configuration, packaging and documentation should be confirmed in the official COLO.Science quotation.
Technical values are provided for product selection and orientation. Final delivered configuration, electrode type, accessory set and documentation should be confirmed through the official COLO.Science quotation or manufacturer-confirmed offer.
Page 3 / 5
Electrode Body and BNC(Q9) Connector Visual Support
PRO6142 premium unfillable low maintenance pH composite electrode
PRO6142 · complete electrode body · premium low-maintenance pH composite electrode
Visual reference and functional elements
Electrode body: polycarbonate shaft in standard Φ12×120 mm format for common laboratory holders and sample vessels.
Sensor area: pH-sensitive measuring end intended for routine aqueous pH measurement.
Reference system: Longlife reference with open junction and unfillable construction.
Connector: BNC(Q9) connection for standard pH meter input compatibility.
Product image references
PRO6142 pH electrode body and sensor area
Electrode body · low-maintenance pH composite electrode
PRO6142 pH electrode BNC Q9 connector detail
Connector detail · BNC(Q9) pH electrode connection

Compatibility notice - connector and meter matching are essential

PRO6142 uses a BNC(Q9) connector. Before ordering, verify that the pH meter accepts BNC / Q9 pH electrode input. If the meter uses S7 or another electrode interface, cable or electrode compatibility must be confirmed before purchase.

Selection and Use Notes
For routine pH
Calibration: use fresh buffers covering the expected measurement range.
Condition check: monitor response stability and calibration behavior before critical measurements.
For low maintenance
No refill: unfillable design reduces routine maintenance work.
Open junction: useful where clogging resistance is important in routine sample work.
For ordering
Connector: confirm BNC(Q9) pH input on the instrument.
Documentation: request final quotation confirmation for supplied packaging and accessories.
Page 4 / 5
COLO.Science · Final Support Page
Manufacturer and support
COLO Lab Experts
Polje ob Sotli 4, SI-3255, Slovenia
Selection guidance: Send the meter model, connector type, sample type, expected pH range, working temperature and sample matrix. COLO.Science can help confirm whether PRO6142 is the correct low-maintenance pH electrode or whether a specialized electrode is required.
Contact and navigation
COLO.Science · pH electrode selection

Need confirmation for pH electrode compatibility?

For correct electrode selection, confirm the pH meter connector, sample type, expected temperature range and measurement workflow. COLO.Science can support electrode matching, accessory selection and quotation preparation for routine pH laboratories.

Document: PRO6142 Low Maintenance pH Composite Electrode · Technical Specification · COLO.Science
Online support: colo.si · E-mail: sales@colo.si
Disclaimer: This technical specification is provided as an informational product-selection document. Values, configuration, supplied accessories and documentation may change according to manufacturer revision, market availability or confirmed quotation. Only the final COLO.Science quotation, pro forma invoice, order confirmation or manufacturer-confirmed document should be treated as the official and binding specification for procurement, tendering or delivery acceptance.
Page 5 / 5