The Apera PH700-MS (AI5017) is a laboratory-grade benchtop pH meter designed for testing extremely small-volume water solutions, biological fluids, and protein-containing samples. It includes the Swiss-engineered LabSen® 241-3SP pH/temperature electrode, which features a 3 mm cylindrical glass sensing tip, a 4 mm stainless-steel protective shaft, and specialized Protelyte reference electrolyte. This configuration is designed to provide stable measurements in protein-rich and viscous samples that may clog or contaminate conventional pH electrodes. The meter delivers ±0.01 pH accuracy and supports automatic temperature compensation, automatic calibration, electrode-condition diagnostics, and internal storage for 50 measurement records. With the optional ultra-micro sample container, it can measure samples as small as 15 microliters, making it useful when working with limited or valuable laboratory samples.
• Product Type: Benchtop laboratory pH meter kit
• Brand: Apera Instruments
• Model: PH700-MS
• SKU: AI5017
• pH Measurement Range: 0–14.00 pH
• pH Resolution: 0.01 pH
• pH Accuracy: ±0.01 pH
• Minimum Sample Volume: 15 µL with the optional ultra-micro container; approximately 30 µL without it
• Included Electrode: Swiss-engineered LabSen® 241-3SP pH/temperature electrode
• Electrode Tip: 3 mm cylindrical glass membrane
• Protective Shaft: 4 mm stainless steel
• Reference Electrolyte: Protelyte, a specialized electrolyte designed for protein-containing samples
• Primary Applications: Micro-volume water solutions, biological fluids, protein-containing samples, serum, and microbiological samples
• Additional Applications: Tissue-culture preparation, enzyme-containing solutions, biological inoculants, extract quality control, and small-batch nutrient formulations
• Temperature Compensation: Automatic, 0–100°C
• Calibration: Automatic 1–3-point calibration
• Supported Calibration Buffers: pH 4.00, 7.00, and 10.01
• Electrode Diagnostics: Self-diagnosis and electrode-condition display
• Measurement Functions: Maximum/minimum reading mode
• Data Storage: Up to 50 measurement records
• Electrode Connection: BNC
• Ingress Protection: IP54 — protected against dust and water splashes; not suitable for immersion
• Included Accessories: PH700 meter, LabSen 241-3SP electrode, dual-electrode holder, and three 50 mL bottles of premixed calibration solutions at pH 4.00, 7.00, and 10.01
• Optional Accessory: Ultra-micro sample container for measurements down to 15 µL
• Replacement Electrode: LabSen 241-3SP is replaceable
• Warranty: 2 years for the meter and 6 months for the electrode
Key Advantage: The Apera PH700-MS combines ±0.01 pH accuracy with the ability to test extremely small samples, reducing the amount of valuable biological or laboratory material required for each measurement. Its specialized electrode is designed for protein-containing and viscous samples, while automatic calibration, electrode-condition diagnostics, and 50-record internal storage support consistent laboratory quality-control procedures. It is particularly valuable for facilities conducting tissue-culture work, biological testing, or small-volume formulation analysis where conventional pH electrodes may require too much sample material.