HH SCIENCE HH5400i Conductivity Electrode| Four-Electrode Graphite Digital Conductivity Sensor
US$180.00
The HH SCIENCE HH5400i is a digital four-electrode conductivity sensor with integrated RS485 output and Hastelloy electrodes, designed for high-precision conductivity monitoring across corrosive, high-range industrial and environmental applications.
Key Features:
- Wide conductivity range: 0–500 mS/cm
- Four-electrode Hastelloy front end for superior corrosion resistance
- Direct RS485 Modbus output with built-in microprocessor
- No need for external transmitters or cell constant selection
- IP68-rated for submersion and harsh environments
- G3/4 thread for inline or pipe-mounted installation
The HH SCIENCE HH5400i is an advanced digital conductivity sensor that integrates four-electrode technology with a built-in microprocessor, enabling direct RS485 Modbus output without the need for a separate transmitter. This all-in-one intelligent sensor design improves system integration, simplifies cabling, and enhances data communication between the sensor, operator, and automation system.
At the sensing interface, the HH5400i features Hastelloy C alloy electrodes, delivering outstanding acid/alkali corrosion resistance, thermal stability, and mechanical durability, making it ideal for the most aggressive chemical and industrial environments. With a wide measurement range of 0–500 mS/cm, this sensor supports diverse applications from seawater and chemical process control to wastewater and high-conductivity solutions—all without requiring multiple cell constant versions.
Its IP68 waterproof construction, standard G3/4 threaded connection, and available submersible configuration make it adaptable to a variety of installation formats, including inline pipelines, open tanks, or submerged treatment zones.
Key Features
- Ultra-Wide Conductivity Range (0–500 mS/cm): Suitable for low to extremely high conductivity fluids including seawater, chemical brines, and industrial effluents.
- Four-Electrode Hastelloy Design: Provides excellent chemical resistance and stable signal output across corrosive and high-temperature applications.
- Integrated RS485 Modbus Output: Built-in microprocessor eliminates the need for an external transmitter, enabling direct digital communication with control systems.
- Universal Application: Eliminates the need to select or change cell constants—one sensor covers all ranges.
- IP68 Waterproof Housing: Ensures long-term durability in submerged or wet installation environments.
- G3/4 Thread Connection: Compatible with standard pipe mounting or threaded tank adapters.
- Fast, Accurate Measurements: Real-time conductivity data with high precision, minimal drift, and strong repeatability.
Optional Upgrades
- Low-Power Version: Available for battery-powered or energy-limited systems.
- Thread Configuration: Offered in submersible and inline G3/4 variants to match installation needs.
- Cable Extension Options: Cable length can be extended up to 100 meters for remote monitoring or complex plant layouts.
Typical Applications
- Municipal and Industrial Wastewater Treatment
- Seawater Monitoring and Desalination Plants
- Acidic and Alkaline Chemical Process Control
- Industrial Wash and Rinse Water Systems
- Corrosive Fluid Monitoring in Metallurgy and Mining
- Automation Integration with RS485 Modbus SCADA/PLC Systems
| Measurement Range | 0~500 ms/cm |
| Measurement Accuracy | ±1.5% |
| Temperature Range | -20~60℃ |
| Pressure Range | 0~6Bar |
| Temperature Compensation Type | NTC22K |
| Data Compensation | Default 25℃ temperature compensation, 2%/℃ |
| Response Time | <10S |
| Sensor Lifespan | 2-3 years |
| Installation Thread | G3/4 |
| Housing Material | POM |
| Length | 160mm |
| Cable Connection | Integrated direct-connect type |
| Power Supply | 6-30VDC |
| Communication Protocol | MODBUS RTU RS485 |
| Weight | 0.3 kg |
|---|---|
| Dimensions | 20 × 6 × 6 cm |
| Measurement | Conductivity |
| Temperature Compensation Options | NTC 2.252K, NTC 5K, NTC 10K, NTC 22K, NTC 30K, PT100, PT1000 |
| Parameters | Conductivity |
| Cable Connection | 4 PIN, Integrated direct-connection cable, K2, K8S, K9, S7, S8, S8M, VP, VP4 |
Related Products
The HH SCIENCE HH2100 is a high-performance pH electrode designed for extreme wastewater environments, featuring a clog-resistant ceramic junction, double-junction reference system, and reinforced glass membrane for long-term durability and reliability.
Key Features:
- Ring-shaped ceramic junction for anti-clogging
- Double-junction reference system for contamination resistance
- IP68 waterproof rating for submersion
- Reinforced pH-sensitive glass membrane
- Full-range pH measurement (0–14) with stable slope response
The HH SCIENCE HH2000 is a durable, cost-effective glass-body pH electrode designed for precise, stable measurements in water and wastewater applications, with industrial-grade reliability and enhanced mechanical resilience.
Key Features:
- Reinforced glass membrane for shock resistance
- Long-path reference system ensures long-term stability
- IP68-rated for submersible and inline use
- PTFE ring salt bridge delivers stable junction potential
- Accurate across the full 0–14 pH range
The HH SCIENCE HH2800 is a high-temperature pH electrode built for chemical, biopharmaceutical, and industrial processes up to 150°C, featuring a specialized HT membrane and synthetic gel system designed for sterilization, pressure, and chemical resistance.
Key Features:
- Withstands temperatures up to 150°C
- Dual-junction design resists contamination
- Reinforced HT membrane for thermal and mechanical shock
- IP68-rated for immersion and pressurized systems
- Compatible with CIP/SIP and autoclave sterilization
The HH SCIENCE HH2800L is a pH electrode designed for stable and accurate performance in low-temperature conditions down to -25°C, combining a cold-resistant electrolyte with dual-junction protection and mechanical durability for laboratory, chemical, and refrigerated applications.
Key Features:
- Reliable performance in temperatures as low as -25°C
- Dual-junction design resists contamination
- IP68-rated for immersion use
- Chemically resistant to strong acids, alkalis, and solvents
- Minimal temperature and signal drift over long-term operation