Gaskatel HydroFlex Hydrogen Reference Electrode

HydroFlex is a compact, low-maintenance hydrogen reference electrode for reliable potential measurements in electrochemical research. Its replaceable internal hydrogen source removes the need for an external hydrogen supply.

Unlike conventional reference electrodes, HydroFlex contains no internal electrolyte, helping eliminate electrolyte leakage, ion discharge and liquid-junction potentials. Its chemically resistant PTFE construction enables operation in strongly acidic, strongly alkaline and concentrated fluoride-containing electrolytes.

Key Features

• Reversible hydrogen reference electrode for electrochemical potential measurements

• Integrated, replaceable hydrogen source

• No internal electrolyte or electrolyte refilling

• No ion discharge or liquid-junction potential

• Suitable for pH -2 to 16

• Suitable for long-term measurements

• Low-impedance design; shielded cables are generally unnecessary

• Free from mercury, silver and other toxic heavy metals

• Compact and chemically resistant construction

Typical Applications

• Corrosion and electrochemical potential measurements

• Electrocatalysis studies

• Hydrogen evolution and oxidation research

• Fuel-cell and electrolyser development

• Battery and energy-material testing

• Measurements in concentrated acids, alkalis and fluoride-containing electrolytes

• Long-duration electrochemical experiments

Technical Specifications

Scope of Delivery

• One HydroFlex hydrogen reference electrode

• One installed hydrogen cartridge

• One activation sticker

• User manual

The connecting test lead is not included with the standard HydroFlex electrode. First-time users may prefer the HydroFlex Starter Kit, which includes the test lead, an additional hydrogen cartridge and the required cartridge tools.

Important Operating Information

HydroFlex must be activated before first use. Following activation, the electrode should remain in distilled or deionised water for 24 hours before measurement. The internal hydrogen source operates continuously once activated, including when measurements are not being performed.

The hydrogen cartridge should be replaced promptly when its operating period expires. Refer to the manufacturer’s manual for complete activation, storage, maintenance and cleaning instructions.

Ordering Information

Recommended Accessories

• HydroFlex replacement hydrogen cartridge

• Test lead with 2 mm/4 mm connectors

• HydroFlex Starter Kit for first-time users

Manufacturer Documentation

• HydroFlex User Manual

• HydroFlex Activation Instructions

Specifications are based on information supplied by Gaskatel and are subject to change without notice.