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HYDROLAB pH Sensor for HL Series Sonde with Standard Reference
HYDROLAB pH Sensor for HL Series Sonde with Standard Reference

HYDROLAB pH Sensor for HL Series Sonde with Standard Reference

Product Number: HLPHSREF
Available for purchase through July 31, 2026.

Overview

The HYDROLAB pH sensor uses a glass bulb measuring electrode and refillable reference electrode, each in their own sonde port. A user-rebuildable reference electrode extends the life of the pH sensor while minimizing costs because the measuring electrode does not necessarily need replacement when the reference electrode is depleted.

(accessory cannot be purchased as a standalone product)

Specifications

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Technical Attributes
Accuracy ±0.2 pH
Compatible Instruments HL4 & HL7
Housing material Glass bulb
Measurement Range EU 0 - 14 pH
Measuring Range Depth 200 m
Methods SM 4500-H Standard Methods for the Examination of Water and Wastewater
Resolution EU 0.01 pH
Sample Probe Standard Probe

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