Specialty pH electrodes for high-pressure alkali, cryogenic, and viscous-liquid applications.
High-Pressure Alkali pH Electrode – 130°C, 13 bar
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The InstroDirect IDH-J605-HP High-Pressure Alkali pH Electrode – 130°C, 13 bar — is a high-pressure, high-temperature alkali-stable pH electrode rated for 13 bar process pressure and 130 °C continuous operation across the full 0–14 pH range. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
The InstroDirect IDH-J605-HP High-Pressure Alkali pH Electrode – 130°C, 13 bar — is a high-pressure, high-temperature alkali-stable pH electrode rated for 13 bar process pressure and 130 °C continuous operation across the full 0–14 pH range. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
Cryogenic Process pH Sensor – −20°C Low-Temperature
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The InstroDirect IDH-J301-CR Cryogenic Process pH Sensor – −20°C Low-Temperature — is a specialised cryogenic pH electrode rated for continuous operation down to −20 °C. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
The InstroDirect IDH-J301-CR Cryogenic Process pH Sensor – −20°C Low-Temperature — is a specialised cryogenic pH electrode rated for continuous operation down to −20 °C. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
Viscous Liquid pH Probe – Anti-Clogging
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The InstroDirect IDH-J204-V Viscous Liquid pH Probe – Anti-Clogging — is a specialised pH electrode engineered for viscous process liquids — honey, syrups, slurries, thick emulsions, and semi-solid food products — where standard electrodes clog within hours. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
The InstroDirect IDH-J204-V Viscous Liquid pH Probe – Anti-Clogging — is a specialised pH electrode engineered for viscous process liquids — honey, syrups, slurries, thick emulsions, and semi-solid food products — where standard electrodes clog within hours. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.