The LabSen® 241-3SP pH electrode from Apera Instruments is designed for precise pH measurement in small-volume samples (>30 μl), making it ideal for use in NMR sample tubes, microtiter plates, and microcentrifuge tubes. With a suitable microvolume container (sold separately), it can measure samples as small as 15 μl. Manufactured with Swiss sensor technology, this electrode features a special cylindrical micro-electrode tip, a long-life reference system, and a steel-protected body for enhanced durability.

Key Features:

• Swiss Sensor Technology – Advanced design for accurate, stable, and fast pH measurements in micro samples.
• Long-Life Reference System – Features a glass tube, AgCl, and a reference silver wire, improving stability and extending electrode lifespan. A cotton-filled glass tube prevents unwanted reactions between AgCl and the electrolyte due to temperature changes.
• Protelyte Electrolyte – Specially designed oily reference solution, making it ideal for protein solutions and viscous samples.
• Unique Cylindrical Glass Membrane – Features a 3mm micro-electrode tip inside a 4mm stainless steel tube, allowing precise measurement in narrow tubes and microcontainers.
• High-Temperature Compatibility – Can be used in temperatures up to 100°C.
• Steel-Protected Design – A stainless steel sheath prevents damage during handling and impact, making it durable despite its thin structure.
• Ultra-Small Sample Measurement –
  • Standard Measurement: Works with sample volumes >30 μl.
  • Microcontainer Measurement: Works with samples as small as 15 μl (microcontainer sold separately).

Compatibility:

• BNC Connector – Compatible with all Apera Instruments pH meters using BNC connectors, including:
  • PH850, PC850, PH8500, PC8500, PH700, PH910, PC910, PH950, PC950, PH800, PC800, PH820, and PC820.
• Temperature Compensation – Requires a separate temperature sensor (e.g., Apera Instruments MP500) for automatic temperature compensation or manual temperature input.

Warranty:

• 6-Month Manufacturer's Warranty ensuring long-term reliability for micro-volume pH measurements.