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LabSen® 553 combined pH insertion electrode for solid samples and soil measurements

The LabSen® 553 by Apera Instruments is a high-precision pH insertion electrode designed for semi-solid to solid samples, including soil, fruits, vegetables, and culture media. With Swiss sensor technology, a durable PVC housing, and an integrated temperature sensor, it provides fast, stable, and accurate pH readings in various applications.


Key Features:

Swiss Patented Sensor Technology – Ensures high accuracy and durability.
Perfect for Soil & Solid Samples – Designed for soil, fruits, vegetables, and culture media.
LabSen S-Type Pointed Glass Diaphragm10x stronger than conventional electrodes, delivering stabilized readings in 15–30 seconds.
Durable PVC HousingDirt-resistant and offers reinforced protection for extended use.
Polymer Electrolyte with Hole Diaphragm – Prevents clogging, allowing direct sample contact for reliable readings.
Long-Life Reference System – Improves measurement stability and extends electrode lifespan.
Non-Flowing Blue Gel Electrolyte – Eliminates air bubbles, reducing measurement errors.
Integrated Temperature Sensor – Enables automatic temperature compensation for more precise results.
BNC & RCA Connectors – Compatible with Apera Instruments pH meters (PH850, PC850, PH8500, PC8500, PH700, PH910, PC910, PH950, PC950, PH800, PC800, PH820, PC820).


Compatibility:

BNC Connector – Works with all pH meters using BNC connections.
✔ RCA (Cinch) Temperature Sensor – May not be compatible with all non-Apera meters.

Official Replacement Electrode for Apera PH850-SL & PH8500-SL pH meters.


Warranty:

✔ 6-Month Manufacturer's Warranty for reliability and peace of mind.

Technical Specifications
Cable Ø5mm×1m
Connection BNC/RCA
Diaphragm Ceramic+single pore
Electrode Dimension Electrode (Ø15×90) mm Measuring tip (Ø6×25) mm
Electrolyte Polymer
Glass Membrane Type S
Measuring Range (0 ~ 14) pH
Membrane resistance <250 MΩ
Recommended operating temperature (0 ~ 80) °C
Reference system Long Life
Shank material PVC plastic
Storage solution 3M KCl
Temperature Sensor NTC 30kΩ