The Glass pH Electrode LE 409 with Liquid Electrolyte is a high-precision lab electrode designed for fast, stable, and accurate pH measurements in a wide range of aqueous samples. Equipped with a refillable liquid electrolyte system, this electrode provides superior measurement consistency and extended lifespan—making it ideal for routine laboratory analysis.
Featuring a ceramic diaphragm, Ag/AgCl reference system, and saturated KCl/AgCl electrolyte, the LE 409 delivers rapid response times and reliable results across acidic, alkaline, and neutral solutions. Its 120 mm glass shaft and BNC connector ensure universal compatibility with most laboratory pH meters.
Designed for precision, durability, and ease of use, it is suitable for research labs, industrial QC processes, environmental testing, water analysis, and educational laboratories requiring efficient pH measurement performance.
Perfect For:
• Routine laboratory pH measurements
• Water, wastewater & environmental analysis
• Food & beverage quality control
• Chemical & pharmaceutical labs
• Education, teaching & research labs
• pH testing in acids, alkalis, and general aqueous samples
Key Features:
• Refillable liquid electrolyte for long-lasting performance
• Ag/AgCl reference system ensures stable, accurate readings
• Ceramic diaphragm for fast response
• Saturated KCl/AgCl electrolyte (3 mL) for consistent measurement
• 120 mm glass shaft with 12 mm diameter—robust and laboratory-grade
• 1.0 m cable with BNC connector for universal pH meter compatibility
• Ideal for acids, alkalis, and general aqueous samples
• Reliable and easy to maintain
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