Collection: pH Meters and Controllers
pH Meters and Controllers for Sale - New and Refurbished | mLab Supply
pH meters and controllers measure and regulate hydrogen ion concentration in solutions for buffer preparation, fermentation monitoring, water quality testing, and process control applications. mLab Supply sources new, refurbished, and surplus benchtop pH meters, portable meters, and inline pH controllers from leading manufacturers.
Related Measurement Equipment
- Analytical Balances - Gravimetric preparation of pH standards and buffer components
- Water Baths - Temperature-controlled incubation for pH-sensitive reactions
- Bioreactors and Fermenters - Inline pH monitoring and control for bioprocess applications
Common Use Cases
- Buffer and media preparation and pH adjustment
- Fermentation and bioreactor pH monitoring and control
- Water quality and environmental monitoring
- Pharmaceutical formulation and QC testing
- Food and beverage pH measurement and process control
What to Look For
- Accuracy and resolution: Laboratory meters typically offer 0.001 pH resolution; confirm accuracy requirements for your application
- Electrode compatibility: Confirm electrode connector type and availability of electrodes for your sample matrix
- Temperature compensation: Automatic temperature compensation (ATC) is essential for accurate measurements across temperature ranges
- GxP compliance: For regulated applications, confirm GLP data output, calibration logging, and audit trail support
Brands We Source
Mettler Toledo (SevenExcellence, SevenCompact) | Thermo Fisher (Orion Star, Orion Versa Star) | Hanna Instruments (HI series) | Sartorius (PB-11) | YSI (ProDSS)
Condition Options
- New (select models available to source)
- Refurbished / Pre-Owned - calibrated and electrode response verified
- Surplus / As-Is - priced accordingly
Availability and pricing are subject to change. Submit a quote request and we will confirm current stock, lead time, and electrode availability within 1-2 business days.