Multi-Parameter Water Quality Touchscreen Controller – 4–8 Channels
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InstroDirect IDWQ-3000 Multi-Parameter Water Quality Touchscreen Controller – 4–8 Channels. is a touchscreen multi-parameter water-quality controller available in three configurations: IDWQ-3000 (4. Open RS485 Modbus RTU, no sensor vendor lock-in. Alternative to Endress+Hauser Liquiline and HACH SC transmitter/controller families. AU technical support, on-site commissioning.
InstroDirect IDWQ-3000 Multi-Parameter Water Quality Touchscreen Controller – 4–8 Channels. is a touchscreen multi-parameter water-quality controller available in three configurations: IDWQ-3000 (4. Open RS485 Modbus RTU, no sensor vendor lock-in. Alternative to Endress+Hauser Liquiline and HACH SC transmitter/controller families. AU technical support, on-site commissioning.
Single-Channel Water Quality Controller – 4″ LCD, Dual 4–20 mA, RS485 + RS232
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InstroDirect IDWQ-2000 Single-Channel Water Quality Controller – 4″ LCD, Dual 4–20 mA, RS485 + RS232. is the upgraded 4-inch single-channel controller with dual 4–20 mA outputs, three 120 VAC / 24 VDC relays, RS485 + RS232 digital outputs, and a larger 144 mm × 144 mm panel footprint. Open RS485 Modbus RTU, no sensor vendor lock-in. Alternative to Endress+Hauser Liquiline and HACH SC transmitter/controller families. AU technical support, on-site commissioning.
InstroDirect IDWQ-2000 Single-Channel Water Quality Controller – 4″ LCD, Dual 4–20 mA, RS485 + RS232. is the upgraded 4-inch single-channel controller with dual 4–20 mA outputs, three 120 VAC / 24 VDC relays, RS485 + RS232 digital outputs, and a larger 144 mm × 144 mm panel footprint. Open RS485 Modbus RTU, no sensor vendor lock-in. Alternative to Endress+Hauser Liquiline and HACH SC transmitter/controller families. AU technical support, on-site commissioning.
Single-Channel Water Quality Controller – 3″ LCD, 4–20 mA, Modbus
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InstroDirect IDWQ-1000 Single-Channel Water Quality Controller – 3″ LCD, 4–20 mA, Modbus. is an entry-tier single-channel water-quality controller with a 3-inch 800×480 colour LCD, one 4–20 mA analog output, three SPDT relays, and RS485 Modbus digital output. Open RS485 Modbus RTU, no sensor vendor lock-in. Alternative to Endress+Hauser Liquiline and HACH SC transmitter/controller families. AU technical support, on-site commissioning.
InstroDirect IDWQ-1000 Single-Channel Water Quality Controller – 3″ LCD, 4–20 mA, Modbus. is an entry-tier single-channel water-quality controller with a 3-inch 800×480 colour LCD, one 4–20 mA analog output, three SPDT relays, and RS485 Modbus digital output. Open RS485 Modbus RTU, no sensor vendor lock-in. Alternative to Endress+Hauser Liquiline and HACH SC transmitter/controller families. AU technical support, on-site commissioning.
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.
Corrosion/Fouling-Proof Process pH Electrode – 130°C
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The InstroDirect IDH-J203-CF Corrosion/Fouling-Proof Process pH Electrode – 130°C — is a heavy-duty pH electrode engineered for processes that foul or corrode standard electrodes within weeks — high-solids wastewater, oil-bearing process water, and sulphide-rich chemistries. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
The InstroDirect IDH-J203-CF Corrosion/Fouling-Proof Process pH Electrode – 130°C — is a heavy-duty pH electrode engineered for processes that foul or corrode standard electrodes within weeks — high-solids wastewater, oil-bearing process water, and sulphide-rich chemistries. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
HF-Resistant pH Electrode – Hydrofluoric Acid Proof
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The InstroDirect IDH-J202-HF HF-Resistant pH Electrode – Hydrofluoric Acid Proof — is a specialised HF-resistant pH electrode designed for processes containing hydrofluoric acid that destroys standard glass electrodes within hours. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
The InstroDirect IDH-J202-HF HF-Resistant pH Electrode – Hydrofluoric Acid Proof — is a specialised HF-resistant pH electrode designed for processes containing hydrofluoric acid that destroys standard glass electrodes within hours. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
Digital Process pH Sensor Pro – RS485 Modbus
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The InstroDirect IDH-100P Digital Process pH Sensor Pro – RS485 Modbus — is the digital "Pro" variant with an integrated in-sensor transmitter and RS485 Modbus RTU output. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
The InstroDirect IDH-100P Digital Process pH Sensor Pro – RS485 Modbus — is the digital "Pro" variant with an integrated in-sensor transmitter and RS485 Modbus RTU output. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
Industrial Standard pH Electrode – 130°C, 10 bar
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The InstroDirect IDH-J201 Industrial Standard pH Electrode – 130°C, 10 bar — is a robust general-purpose industrial pH electrode rated for continuous 130 °C operation and 10 bar pressure. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
The InstroDirect IDH-J201 Industrial Standard pH Electrode – 130°C, 10 bar — is a robust general-purpose industrial pH electrode rated for continuous 130 °C operation and 10 bar pressure. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
High-End Industrial pH Sensor – PEEK Body, Extreme Chemistry
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The InstroDirect IDH-500T High-End Industrial pH Sensor – PEEK Body, Extreme Chemistry — is an all-PEEK bodied industrial pH sensor engineered for extreme chemistry applications — strong acids, caustics, solvents, semiconductor process water, and pharma ultra-pure water where stainless steel is corroded and standard glass electrodes fail within weeks. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
The InstroDirect IDH-500T High-End Industrial pH Sensor – PEEK Body, Extreme Chemistry — is an all-PEEK bodied industrial pH sensor engineered for extreme chemistry applications — strong acids, caustics, solvents, semiconductor process water, and pharma ultra-pure water where stainless steel is corroded and standard glass electrodes fail within weeks. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
Premium Industrial pH Sensor – Long-Life Reference
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The InstroDirect IDH-350T Premium Industrial pH Sensor – Long-Life Reference — is a premium-grade industrial pH electrode designed for maximum service life in demanding process applications. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
The InstroDirect IDH-350T Premium Industrial pH Sensor – Long-Life Reference — is a premium-grade industrial pH electrode designed for maximum service life in demanding process applications. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
Industrial pH Sensor – CIP-Compatible, Extended Temperature
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The InstroDirect IDH-320T Industrial pH Sensor – CIP-Compatible, Extended Temperature — is an industrial pH sensor rated for short-duration CIP / SIP exposure up to 110 °C with rapid recovery to normal process temperature. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
The InstroDirect IDH-320T Industrial pH Sensor – CIP-Compatible, Extended Temperature — is an industrial pH sensor rated for short-duration CIP / SIP exposure up to 110 °C with rapid recovery to normal process temperature. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
Industrial Process pH Sensor – 100°C, 316 SS Trim
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The InstroDirect IDH-300T Industrial Process pH Sensor – 100°C, 316 SS Trim — is a heavy-duty industrial pH sensor rated for continuous operation at 100 °C and 10 bar, designed for demanding process applications such as cooling towers, boiler water, acid/caustic dosing, and petrochemical process water. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
The InstroDirect IDH-300T Industrial Process pH Sensor – 100°C, 316 SS Trim — is a heavy-duty industrial pH sensor rated for continuous operation at 100 °C and 10 bar, designed for demanding process applications such as cooling towers, boiler water, acid/caustic dosing, and petrochemical process water. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
Mid-Range Industrial pH Sensor – 12mm Extended Body
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The InstroDirect IDH-200T Mid-Range Industrial pH Sensor – 12mm Extended Body — is an extended-body industrial pH electrode with 316 stainless trim, designed for deeper-insertion installations in process tanks and WWTP return lines where a short compact probe would sit too close to the pipe wall. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
The InstroDirect IDH-200T Mid-Range Industrial pH Sensor – 12mm Extended Body — is an extended-body industrial pH electrode with 316 stainless trim, designed for deeper-insertion installations in process tanks and WWTP return lines where a short compact probe would sit too close to the pipe wall. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
Compact Process pH Sensor – 12mm Body
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The InstroDirect IDH-100T Compact Process pH Sensor – 12mm Body — is a compact 12mm-body industrial pH electrode designed for general process water, cooling tower, and wastewater monitoring. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
The InstroDirect IDH-100T Compact Process pH Sensor – 12mm Body — is a compact 12mm-body industrial pH electrode designed for general process water, cooling tower, and wastewater monitoring. Australian technical support, on-site calibration, open RS485 Modbus compatibility. Alternative to Endress+Hauser and HACH pH sensors.
Residual Chlorine Online Analyzer
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Online residual chlorine analyzer by InstroDirect for continuous monitoring of free, combined, or total chlorine in drinking water, WWTP disinfection, cooling water, and pool/spa applications. Choice of DPD colorimetric or amperometric method. 0–5 mg/L or 0–20 mg/L. RS485 Modbus output. AU reagent stock and on-site service.
Online residual chlorine analyzer by InstroDirect for continuous monitoring of free, combined, or total chlorine in drinking water, WWTP disinfection, cooling water, and pool/spa applications. Choice of DPD colorimetric or amperometric method. 0–5 mg/L or 0–20 mg/L. RS485 Modbus output. AU reagent stock and on-site service.
Nitrate Nitrogen Online Analyzer
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Online nitrate nitrogen analyzer by InstroDirect for continuous NO3-N measurement in drinking water, WWTP effluent, environmental surveillance, and agricultural catchment monitoring. Choice of cadmium-reduction colorimetric or UV absorption method. 0–100 mg/L. RS485 Modbus output, AU reagent supply and service.
Online nitrate nitrogen analyzer by InstroDirect for continuous NO3-N measurement in drinking water, WWTP effluent, environmental surveillance, and agricultural catchment monitoring. Choice of cadmium-reduction colorimetric or UV absorption method. 0–100 mg/L. RS485 Modbus output, AU reagent supply and service.
Suspended Solids / Turbidity Probe with Self-Cleaning Wiper
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Self-cleaning turbidity and suspended solids probe by InstroDirect for continuous measurement of MLSS, TSS, and activated sludge concentration in WWTPs and industrial process water. Integrated mechanical wiper clears the optical window on a timed cycle, eliminating drift from biofilm and particulates. 316 stainless body, RS485 Modbus RTU, and Pt1000 temperature compensation. Backed by AU technical support and on-site calibration.
Self-cleaning turbidity and suspended solids probe by InstroDirect for continuous measurement of MLSS, TSS, and activated sludge concentration in WWTPs and industrial process water. Integrated mechanical wiper clears the optical window on a timed cycle, eliminating drift from biofilm and particulates. 316 stainless body, RS485 Modbus RTU, and Pt1000 temperature compensation. Backed by AU technical support and on-site calibration.
Inline Optical Turbidity Sensor – Stainless, ISO 7027
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0 ReviewsInline 316 stainless-steel optical turbidity sensor by InstroDirect. ISO 7027-compliant 90° scattered-light measurement with a stable infrared LED and photodiode array for drinking water, WWTP effluent, river, and process water monitoring. RS485 Modbus RTU output with integrated temperature compensation. Backed by Australian technical support, on-site calibration, and formazin standards stocked locally.
Inline 316 stainless-steel optical turbidity sensor by InstroDirect. ISO 7027-compliant 90° scattered-light measurement with a stable infrared LED and photodiode array for drinking water, WWTP effluent, river, and process water monitoring. RS485 Modbus RTU output with integrated temperature compensation. Backed by Australian technical support, on-site calibration, and formazin standards stocked locally.
Free Chlorine Monitoring Panel – Multi-Parameter Wall-Mount System
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Complete multi-parameter free chlorine monitoring panel by InstroDirect — stainless-steel wall-mount assembly with touchscreen controller, transparent flow cell, and pre-wired free chlorine, pH, temperature, and turbidity sensors. Designed for drinking water, pool & spa, cooling tower, and WWTP disinfection monitoring. Fully assembled, calibrated, and ready to drop onto a wall with a single 24V DC feed and a sample line. AU technical support, on-site calibration, and local reagent supply included.
Complete multi-parameter free chlorine monitoring panel by InstroDirect — stainless-steel wall-mount assembly with touchscreen controller, transparent flow cell, and pre-wired free chlorine, pH, temperature, and turbidity sensors. Designed for drinking water, pool & spa, cooling tower, and WWTP disinfection monitoring. Fully assembled, calibrated, and ready to drop onto a wall with a single 24V DC feed and a sample line. AU technical support, on-site calibration, and local reagent supply included.
M12 Digital PEEK Conductivity Sensor for Aggressive Chemicals
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The InstroDirect IDC-M12-PEEK M12 Digital PEEK Conductivity Sensor for Aggressive Chemicals — is a high-temperature, chemical-resistant two-electrode conductivity probe with a PEEK (polyetheretherketone) body and 316 stainless M12 connector head. RS485 Modbus / Pt1000, 0 – 200 mS/cm, IP68. Backed by Australian technical support, on-site calibration, and next-day Brisbane dispatch.
The InstroDirect IDC-M12-PEEK M12 Digital PEEK Conductivity Sensor for Aggressive Chemicals — is a high-temperature, chemical-resistant two-electrode conductivity probe with a PEEK (polyetheretherketone) body and 316 stainless M12 connector head. RS485 Modbus / Pt1000, 0 – 200 mS/cm, IP68. Backed by Australian technical support, on-site calibration, and next-day Brisbane dispatch.
M12 Digital PVC Chemical-Resistant Conductivity Sensor
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The InstroDirect IDC-M12-PVC M12 Digital PVC Chemical-Resistant Conductivity Sensor — is a chemical-resistant two-electrode conductivity probe with a PVC body and M12 stainless connector head. RS485 Modbus / Pt1000, 0 – 100 mS/cm, IP68. Backed by Australian technical support, on-site calibration, and next-day Brisbane dispatch.
The InstroDirect IDC-M12-PVC M12 Digital PVC Chemical-Resistant Conductivity Sensor — is a chemical-resistant two-electrode conductivity probe with a PVC body and M12 stainless connector head. RS485 Modbus / Pt1000, 0 – 100 mS/cm, IP68. Backed by Australian technical support, on-site calibration, and next-day Brisbane dispatch.
M12 Digital Stainless 2-Electrode Conductivity Sensor
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The InstroDirect IDC-M12-SS M12 Digital Stainless 2-Electrode Conductivity Sensor — is a compact M12-connector digital conductivity probe with a 316 stainless body, designed for plug-and-play installation into modern PLC systems with M12 A-coded I/O. RS485 Modbus / Pt1000, 0 – 20 mS/cm, IP68. Backed by Australian technical support, on-site calibration, and next-day Brisbane dispatch.
The InstroDirect IDC-M12-SS M12 Digital Stainless 2-Electrode Conductivity Sensor — is a compact M12-connector digital conductivity probe with a 316 stainless body, designed for plug-and-play installation into modern PLC systems with M12 A-coded I/O. RS485 Modbus / Pt1000, 0 – 20 mS/cm, IP68. Backed by Australian technical support, on-site calibration, and next-day Brisbane dispatch.
Stainless 4-Electrode Conductivity Sensor
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The InstroDirect IDC-4E-SS Stainless 4-Electrode Conductivity Sensor — is a heavy-duty four-electrode conductivity probe with a 316 stainless body and slotted protective cage, built for industrial applications that demand both chemical resistance and tolerance to fouling. RS485 Modbus / Pt1000, 0 – 2000 mS/cm, IP68. Backed by Australian technical support, on-site calibration, and next-day Brisbane dispatch.
The InstroDirect IDC-4E-SS Stainless 4-Electrode Conductivity Sensor — is a heavy-duty four-electrode conductivity probe with a 316 stainless body and slotted protective cage, built for industrial applications that demand both chemical resistance and tolerance to fouling. RS485 Modbus / Pt1000, 0 – 2000 mS/cm, IP68. Backed by Australian technical support, on-site calibration, and next-day Brisbane dispatch.
POM-Body 4-Electrode Conductivity Sensor
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The InstroDirect IDC-4E-POM POM-Body 4-Electrode Conductivity Sensor — is a four-electrode conductivity probe in a POM (polyoxymethylene) plastic body, engineered for wastewater, aquaculture salinity, and industrial rinse water where biofouling and high conductivity would defeat a traditional 2-electrode design. RS485 Modbus / Pt1000, 0 – 2000 mS/cm, IP68. Backed by Australian technical support, on-site calibration, and next-day Brisbane dispatch.
The InstroDirect IDC-4E-POM POM-Body 4-Electrode Conductivity Sensor — is a four-electrode conductivity probe in a POM (polyoxymethylene) plastic body, engineered for wastewater, aquaculture salinity, and industrial rinse water where biofouling and high conductivity would defeat a traditional 2-electrode design. RS485 Modbus / Pt1000, 0 – 2000 mS/cm, IP68. Backed by Australian technical support, on-site calibration, and next-day Brisbane dispatch.
Inline Long-Body Stainless 2-Electrode Conductivity Sensor
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0 ReviewsThe InstroDirect IDC-2W-SS-L Inline Long-Body Stainless 2-Electrode Conductivity Sensor — is an extended-body two-electrode conductivity probe for deep-insertion installations in process tanks, wastewater return lines, and industrial cooling loops. RS485 Modbus / Pt1000, 0 – 200 mS/cm, IP68. Backed by Australian technical support, on-site calibration, and next-day Brisbane dispatch.
The InstroDirect IDC-2W-SS-L Inline Long-Body Stainless 2-Electrode Conductivity Sensor — is an extended-body two-electrode conductivity probe for deep-insertion installations in process tanks, wastewater return lines, and industrial cooling loops. RS485 Modbus / Pt1000, 0 – 200 mS/cm, IP68. Backed by Australian technical support, on-site calibration, and next-day Brisbane dispatch.
Sanitary Tri-Clamp 2-Electrode Conductivity Sensor
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The InstroDirect IDC-2W-SAN Sanitary Tri-Clamp 2-Electrode Conductivity Sensor — is a hygienic-process conductivity probe with a 316L polished stainless tri-clamp flange designed for CIP / SIP service in pharmaceutical, dairy, brewing, and food & beverage plants. RS485 Modbus / Pt1000, 0 – 200 mS/cm, IP68. Backed by Australian technical support, on-site calibration, and next-day Brisbane dispatch.
The InstroDirect IDC-2W-SAN Sanitary Tri-Clamp 2-Electrode Conductivity Sensor — is a hygienic-process conductivity probe with a 316L polished stainless tri-clamp flange designed for CIP / SIP service in pharmaceutical, dairy, brewing, and food & beverage plants. RS485 Modbus / Pt1000, 0 – 200 mS/cm, IP68. Backed by Australian technical support, on-site calibration, and next-day Brisbane dispatch.
Hex-Body Stainless 2-Electrode Conductivity Sensor
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The InstroDirect IDC-2W-SS-H Hex-Body Stainless 2-Electrode Conductivity Sensor — is a heavy-duty two-electrode conductivity probe with a solid 316 stainless hex body and PG cable gland for panel-mounted industrial installations. RS485 Modbus / Pt1000, 0 – 20 mS/cm, IP68. Backed by Australian technical support, on-site calibration, and next-day Brisbane dispatch.
The InstroDirect IDC-2W-SS-H Hex-Body Stainless 2-Electrode Conductivity Sensor — is a heavy-duty two-electrode conductivity probe with a solid 316 stainless hex body and PG cable gland for panel-mounted industrial installations. RS485 Modbus / Pt1000, 0 – 20 mS/cm, IP68. Backed by Australian technical support, on-site calibration, and next-day Brisbane dispatch.