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Built with proprietary sensor technology and premium materials from Switzerland, Apera LabSen 553 PVC-body pH/Temp. Electrode is designed for direct soil testing and soil slurry testing.

LabSen S-type spear glass membrane - low resistance and high firmness, rendering fully stabilized readings in 15 to 30 seconds, and is yet 10 times stronger than traditional glass membranes, highly resistant to general impact, eliminating the chance of accidental breakage when inserting into the soil.

Open&Ceramic double-junction with Polymer electrolyte - ensures full contact with test samples while minimizing junction clogs. No need to refill electrolyte.

Long-Life Reference System - composed of a glass tube, AgCl, and a reference silver wire. The top end of the slim glass tube is stuffed with cotton, which prevents the reaction between AgCl and electrolyte when the temperature changes. It improves the stability of reference electrode and extends the service life of the electrode.

Compatible with all Apera Instruments meters with BNC and RCA connectors such as PH910, PH9500, PH850, PC8500, and PH820. May NOT work with other brands' meters because the thermistor might be incompatible.

    LabSen 553 PVC-body Spear pH/Temp. Electrode for Soil, BNC/RCA Connector

      • Spear sensor designed for direct soil pH test and soil slurry test
      • LabSen S-type glass membrane, featuring fast response and high firmness
      • Open&Ceramic double-junction with Polymer electrolyte
      • Long-Life Reference System - improves the stability of the reference and extends the electrode's service life
      • Built-in temperature sensor for ATC
      • Range: 0 to 14 pH
        Cable/Connector: BNC/RCA
        Housing Material: PVC
        Temp. Sensor: 30KΩ NTU 
        Junction: Open&Ceramic 
        Reference: Long-Life
        Electrolyte: Polymer
        Length: 115mm
        Diameter: 12-5mm 
        Membrane Shape: Spear
        Membrane Resistance: <250MΩ
    • We warrant this electrode to be free from defects in material and workmanship and agree to repair or replace free of charge, at the option of APERA INSTRUMENTS, LLC, any malfunctioned or damaged product attributable to the responsibility of APERA INSTRUMENTS, LLC for a period of SIX MONTHS from the delivery.

      This limited warranty does NOT cover any issues due to:

      • Accidental damage
      • Improper use
      • Normal wear and tear
      • Transportation
      • Storage
      • Failure to follow the product instructions
      • Unauthorized maintenance, modifications, combination or use with any products, materials, processes, systems or other matter
      • Unauthorized repair
      • External causes such as accidents, abuse, or other actions or events beyond our reasonable control.
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