Glass-body Spear pH Electrode Apera Labsen 251

Glass-body Spear pH Electrode Apera Labsen 251

The Glass-body Spear pH Electrode Apera Labsen 251 is a high-quality spear-tip pH electrode designed for direct measurement in soft-solid samples. Its specialized design and durable materials make it an ideal tool for food processing, agricultural testing, and quality control applications.

Features

Optimized for Soft Solids

Thanks to its spear-shaped membrane, the LabSen 251 can easily penetrate soft samples such as cheese, fruits, sushi rice, and semi-solid food products. This allows for accurate, in-situ pH measurement without needing sample dilution.

Durable and Maintenance-Free

The electrode body is made from lead-free glass, while the polymer electrolyte and single pore junction help resist contamination. As a result, the LabSen 251 is maintenance-free and highly suitable for repeated field or lab use.

Long-Life Reference System

To ensure measurement stability and extend service life, the LabSen 251 features a long-life reference system. This improves signal consistency over time, even in complex or sticky sample matrices.

Specifications

• Body Material: Lead-free glass

• Junction Type: Ceramic + Single Pore

• Reference System: Long-Life

• Electrolyte: Polymer (solid)

• Membrane Shape: Spear

• Membrane Resistance: <250 MΩ

• Measuring Range: 0 to 14 pH

• Temperature Range: 0 to 80°C (32 to 176°F)

• Length: 100 mm

• Diameter: 12–6 mm (tapered)

• Temperature Sensor: None

• Connector: BNC

Applications

This electrode is ideal for:

• Food industry testing (cheese, fruit, sushi rice)

• Agricultural and soil sampling

• On-site quality inspections in food processing

• Education and research involving semi-solid mediums