Laboratory Instruments & Portable pH Meters
Connect your lab and process with the Liquiline CML18 multiparameter handheld and Memosens Lab sensors.
Lean 
Fundamental 
Laboratory Instruments & Portable pH Meters
Laboratory instruments and portable meters provide high-integrity measurement of key liquid-analysis parameters - commonly pH, ORP, dissolved oxygen, and conductivity - using sensors and electronics optimized for bench work, grab samples, and field verification. Portable platforms extend lab-grade measurement practices into process environments for rapid checks and troubleshooting.
The primary value is fast, reliable spot measurement with strong traceability. Portable systems enable validation of online measurement loops, confirmation of process samples before corrective actions, and consistent documentation of calibration and measurement steps to meet quality and recordkeeping expectations. A unified measurement ecosystem improves comparability between lab results and field readings by standardizing sensor handling and data capture.
Modern handheld multiparameter meters support plug-and-play sensor interchange, allowing rapid switching between parameters by changing the connected sensor rather than reconfiguring the instrument. Integrated software workflows can document adjustments and results with clear traceability aligned with good laboratory practice (GLP) requirements, reducing transcription errors and improving audit readiness for routine sampling programs.
Applications include verification of process pH and conductivity loops, investigation of intermittent excursions, routine monitoring of grab samples from treatment steps, and field measurement where immediate decisions are required. Portable dissolved oxygen checks in aeration contexts and parallel measurements alongside online instrumentation are common approaches for confirming sensor health and process consistency.
Selection and setup emphasize sensor suitability (standard vs. pure-water pH electrodes, demanding-media designs, and appropriate ORP/DO/conductivity probes), buffer and standard management, and ruggedization for field handling. Connectivity options and digital sensor memory further support consistent performance by preserving calibration data and enabling structured measurement workflows from sampling through reporting.
George E. Booth Co., an exclusive authorized representative of sales and service for Endress+Hauser.
