HH SCIENCE HH2800C Water Online Process pH Sensor Complex High-Temperature Process Electrode | HT High-Temperature pH Membrane
US$550.00 Original price was: US$550.00.US$386.00Current price is: US$386.00.
The HH SCIENCE HH2800C is a high-temperature pH electrode engineered for chemically complex environments, featuring media-specific electrolyte customization and enhanced anti-fouling capabilities for stable performance in high-salinity, high-protein, and heavy metal conditions.
Key Features:
- Withstands extreme high-temperature and chemical stress
- Customized electrolyte system for fouling-prone media
- Dual-junction structure enhances signal stability
- IP68 waterproof for immersion and inline use
- Excellent chemical resistance to acids, alkalis, and solvents
- Size Guide
Technique Guide
Temperature Compensation Options NTC 2.252K, NTC 5K, NTC 10K, NTC 22K, NTC 30K, PT100, PT1000 (optional) Cable Connection Integrated direct-connection cable, S8, S8M, S7, K8S, VP4, VP, K2, K9, 4 PIN - Delivery & Return
Shipping
At HH SCIENCE, we serve both B2C and B2B customers with global shipping options tailored to your needs.
B2C Orders
We offer free international shipping to the EU and USA on all retail items via EMS/EUB. Customers are responsible for any applicable customs duties and local taxes in their country. The standard delivery time is 15–20 business days.B2B Orders
For wholesale and business orders, we ship via air freight, sea freight, or other available international logistics methods. Shipping methods, costs, and lead times vary based on order volume and destination, and are discussed on a case-by-case basis.As most of our products are customizable, the production lead time may vary and will be confirmed upon order placement.
Refund Policy
We offer 100% refunds only in cases of confirmed factory defects.
Refunds are processed after the returned item is received and inspected. Our quality control team will issue a written inspection report within 3–5 business days. Approved refunds will be issued through the original payment method.
Return Policy
Customers are responsible for return shipping costs unless the return is due to a confirmed factory defect.
In cases where a full refund is approved, we will cover the return shipping cost and include it in the refund process. All other returns are handled at the customer’s expense, and products must be returned in their original condition and packaging.
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The HH SCIENCE HH2800C pH electrode is a high-performance solution for high-temperature applications involving chemically complex and contamination-prone process media. Developed from the proven QL3900 platform, this model is equipped with customized intermediate electrolytes designed to maintain accuracy and minimize drift in the presence of heavy metals, salinity, organics, ammonia, and proteinaceous content.
The HH2800C features a dual-junction reference system and a durable sensing membrane that resists both chemical degradation and mechanical shock. Its structure is optimized for challenging industrial applications where standard high-temperature pH sensors often fail prematurely.
The electrode is IP68-rated for continuous immersion and compatible with a wide range of installation configurations, making it ideal for high-stress environments in the chemical, petrochemical, food, and chlor-alkali sectors, among others.
Key Features
- Exceptional High-Temperature Resistance: Withstands thermal stress and retains measurement integrity in temperatures commonly found in chemical reactors and food processing.
- Media-Specific Electrolyte Customization: Formulated to resist clogging, poisoning, and premature failure in media rich in salts, proteins, ammonium ions, or heavy metals.
- Dual-Junction Reference Structure: Enhances resistance to contamination, drift, and process cross-contamination over extended operational periods.
- IP68 Waterproof Design: Suitable for continuous submersion or inline mounting in high-moisture, high-load systems.
- Strong Chemical Compatibility: Maintains performance in solvents, concentrated acids, strong bases, and oxidizing solutions.
- Temperature & Time Stability: Delivers accurate, low-drift pH readings in long-duration processes under both static and fluctuating thermal conditions.
- Reinforced Sensing Membrane: Designed to withstand high-flow impact, vibration, or turbulent process media with minimal wear.
Optional Upgrades
- Custom Insertion Depths: Adaptable to fit various reactor, tank, or pipe installations.
- Junction Customization: Upgrade the ceramic junction to dual/triple-point or ring-style PTFE junction for enhanced anti-clogging and process compatibility.
- Cable & Connector Formats: Available in S8, VP8, K8S, and other industrial connector types.
- Extended Cable Length: Extendable up to 60 meters for remote or hard-to-access mounting locations.
Typical Applications
- High-temperature electronics and electroplating wastewater
- Complex chemical and petrochemical process lines
- High-salinity and heavy-metal-laden industrial effluents
- Ammonia-rich water treatment systems
- Textile dyeing, finishing, and high-protein organic media
- Sugar production and food-grade high-heat operations
- Chlor-alkali processing plants and thermal reaction vessels
| Measuring Range | 0~14pH |
| Temperature Range | 0~130℃ |
| Pressure Range | 0~6 Bar |
| Temperature Compensation Type | NTC2.252K, NTC5K, NTC10K, NTC22K, NTC30K, PT100, PT1000 (optional) |
| Factory Slope | Better than 95% |
| Membrane Resistance | <250MΩ |
| Zero Potential | <±10MV |
| Response Time | <10 S |
| Junction Type | Special porous ceramic core |
| Reference Electrolyte | SRG polymer gel (custom type) |
| Reference Type | Double junction reference |
| Mounting Thread | PG13.5 |
| Housing Material | Glass |
| Insertion Depth | 120/150/225/325/425mm (customizable) |
| pH Sensitive Membrane | High-temperature resistant membrane (HT) |
| 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 | pH |
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