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 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
The HH SCIENCE HH2500C is a high-performance pH electrode engineered for extreme industrial process conditions, featuring application-specific electrolytes and reinforced construction for stable, accurate measurement in chemically complex and contamination-prone environments.
Key Features:
- Application-specific electrolyte for harsh media
- Dual-junction reference for high contamination resistance
- IP68 waterproof for continuous submersion
- Chemically resistant to heavy metals and proteins
- Durable reinforced membrane with full 0–14 pH range
The HH SCIENCE HH6000 is a maintenance-free dissolved oxygen electrode with solidified gel electrolyte and full stainless steel housing, designed for long-term operation in wastewater, aquaculture, and municipal systems without the need for membrane or electrolyte replacement.
Key Features:
- Maintenance-free solidified gel electrolyte
- Mesh membrane design resists air bubble impact
- Fully stainless steel construction for durability
- IP68 waterproof rating for continuous submersion
- Acid and alkali corrosion resistance
- PG13.5 threaded for easy process installation
The HH SCIENCE HH2500 is a high-performance pH electrode with a reinforced cylindrical glass membrane and dual-junction pressure-resistant design, engineered for accurate measurement in aggressive chemical and high-pressure process environments.
Key Features:
- Pressure-resistant up to 6 Bar
- Acid/alkali-resistant cylindrical glass membrane
- Dual-junction system for superior anti-contamination
- Chemically inert to solvents and harsh chemicals
- IP68-rated for continuous submersion