HH SCIENCE HH4000 ORP Sensor Electrode| Glass Body Electrodes | 99% High-Purity Platinum Ring | Interface-compatible with Mettler Toledo ORP Models
Original price was: US$300.00.US$220.00Current price is: US$220.00.
The HH SCIENCE HH4000 is a high-performance industrial ORP electrode with a large-area platinum ring and dual-junction reference, offering stable potential measurements across a wide range of chemical and wastewater applications, even under high-temperature conditions.
Key Features:
- Wide-range ORP measurement capability
- Dual-junction design for enhanced stability and lifespan
- IP68-rated for continuous immersion
- Large 99.99% platinum ring ensures stable redox potential
- High-temperature resistant and process-compatible
The HH SCIENCE HH4000 is a rugged, industrial-grade ORP (oxidation-reduction potential) electrode engineered for consistent and accurate performance across chemical processes, industrial wastewater treatment, and automation integration. At the heart of its design is a high-purity (99.99%) large-area platinum ring, which provides excellent electron transfer surface area for stable and responsive redox potential measurement.
Internally, the HH4000 adopts a dual-junction reference system derived from HH Science’s proven pH electrode architecture, delivering long-term signal stability and resistance to contamination. The electrode is fully IP68 waterproof, allowing for permanent submersion in tanks, flow cells, or harsh process environments.
Built to withstand prolonged high-temperature operation, the HH4000 is compatible with complex and reactive media and is also interface-compatible with Mettler Toledo ORP models, making it a convenient drop-in replacement or system upgrade.
Key Features
- Wide Measurement Range: Suitable for a broad spectrum of redox monitoring needs in both oxidizing and reducing environments.
- High-Purity Platinum Ring (99.99%): Large surface area ensures fast, stable, and precise ORP response across various media.
- Excellent High-Temperature Resistance: Operates reliably under prolonged heat exposure in aggressive chemical and industrial processes.
- Dual-Junction Reference Design: Provides extended service life and minimizes drift and contamination in long-term applications.
- IP68 Waterproof Rating: Designed for reliable performance in fully submerged or in-line installations.
- Media Compatibility: Performs stably in complex, high-solid, or variable ionic strength conditions.
Optional Upgrades
- Custom Insertion Lengths: Available to suit tank depths, flow lines, or process-specific layouts.
- Junction Configuration Options: Upgrade from single-point ceramic to dual- or triple-point configurations for improved liquid junction stability.
- Custom Cable & Connector Formats: Compatible with industry-standard connectors including S8, VP8, K8S, and others.
- Extended Cable Lengths: Up to 60 meters for remote installations or large-scale integration.
Typical Applications
- Production Process Monitoring
- Chemical Reaction Control
- Industrial Wastewater Treatment Systems
- OEM Integration with Water Treatment Equipment
- Automation Platforms Requiring Reliable Redox Feedback
| Measurement Range | -2000mV~2000mV |
| Temperature Range | 0~130℃ |
| Pressure Range | 0~3Bar, 6 Bar MAX |
| Temperature Compensation Type | NTC2.252K, NTC5K, NTC10K, NTC22K, NTC30K, PT100, PT1000 (optional) |
| Factory Slope | Better than 95% |
| Response Time | <10S |
| Junction Type | Special porous ceramic core |
| Reference Electrolyte | PCG polymer gel (standard type) |
| Reference Type | Dual junction reference |
| Mounting Thread | PG13.5 |
| Housing Material | Glass |
| Insertion Depth | 120/150/225/325/425mm (customizable) |
| Cable Connection | S8/S8M/S7/VP8/K8S/K2 (customizable) |
| Weight | 0.3 kg |
|---|---|
| Dimensions | 20 × 6 × 6 cm |
| Junction (Salt Bridge Type) | PTFE, Ceramic Junction |
| Measurement | pH, ORP |
| Temperature Compensation Options | NTC 2.252K, NTC 5K, NTC 10K, NTC 22K, NTC 30K, PT100, PT1000 |
| Cable Connection | Integrated direct-connection cable, S8, S8M, S7, K8S, VP4, VP, K2, K9, 4 PIN |
| Application | Aquaculture & Aquarium, Environmental Monitoring, Food & Beverage, Hydroponics & Agriculture, Industrial Water & Wastewater Treatment, Laboratory & Analytical, Metallurgy & Mining, Municipal Water & Wastewater Treatment, Pool & Spa |
| Parameters | ORP |
Related Products
The HH SCIENCE HH2800P is a high-temperature pH electrode optimized for pure water applications, combining low-conductivity measurement capability with durable construction and enhanced thermal resistance up to 130°C.
Key Features:
- Designed for low-conductivity water (0.5–100 μS/cm)
- Withstands temperatures up to 130°C
- Dual-junction system for extended stability
- IP68-rated waterproof for submersion
- Reinforced membrane for impact durability and fast response
The HH SCIENCE HH2000P is a high-precision, low-impedance pH electrode engineered for stable and accurate measurement of purified water in low-conductivity environments, combining laboratory-grade sensitivity with industrial durability.
Key Features:
- Optimized for low-conductivity media (20–300 μS/cm)
- Low-impedance membrane for fast, accurate response
- IP68-rated waterproof design for submersible and inline use
- Long-path reference for superior drift and contamination resistance
- PTFE ring-shaped salt bridge ensures stable junction in flow-through applications
The HH SCIENCE HH2500HF is a high-performance pH electrode built for hydrofluoric acid environments, featuring a specialized HF-resistant glass membrane that withstands up to 5000 ppm HF while delivering superior accuracy and service life in semiconductor, steel, and chemical processing industries.
Key Features:
- HF-resistant membrane handles up to 5000 ppm HF
- Dual-junction system resists contamination and drift
- IP68-rated for continuous submersion
- Reinforced membrane offers excellent mechanical strength
- Long-term stability in harsh acid process environments
The HH SCIENCE HH2500D is a specialized pH electrode for flue gas desulfurization (FGD) and denitrification (DeNOx) systems, featuring a synthetic gel electrolyte, PTFE junction, and reinforced design for stable performance in sulfur-rich, high-temperature, and high-pressure environments.
Key Features:
- PTFE junction resists clogging and contamination
- Synthetic gel electrolyte blocks sulfur ion interference
- Dual-junction reference system for long-term stability
- IP68 waterproof for full submersion
- Reinforced membrane for impact resistance and durability