HH SCIENCE HH2800P Pure Water Online Process pH Sensor for High-Temperature & High-Pressure| Glass Body Electrodes | PTFE Double Junction
US$400.00 Original price was: US$400.00.US$300.00Current price is: US$300.00.
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
- 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 HH2800P is a high-temperature, low-conductivity pH electrode designed to meet the challenges of pure water monitoring in demanding thermal environments. As an advanced upgrade of the HH2300P, this model is engineered for enhanced temperature and pressure resistance, capable of operating in media up to 130°C, making it ideal for boiler systems, high-temperature condensate lines, and power generation water circuits.
Built with a low-conductivity-sensitive membrane tuned for 0.5–100 μS/cm water, the HH2800P ensures accurate, drift-resistant measurement in ultrapure or demineralized water. A dual-junction reference system minimizes contamination risks, while the IP68 waterproof rating allows for reliable submersible or inline installation.
Its reinforced sensing membrane provides excellent mechanical resilience, and optional customization allows integration with various industrial systems and configurations.
Key Features
- Low-Conductivity Range (0.5–100 μS/cm): Tailored for ultrapure and high-temperature water systems in power generation and critical process control.
- 130°C High-Temperature Resistance: Maintains performance in high-pressure, high-heat systems where standard sensors degrade rapidly.
- Dual-Junction Reference Design: Increases resistance to contamination and enhances service life in low-ionic, high-purity water media.
- IP68 Waterproof Construction: Enables safe use in immersion or pipeline configurations under continuous exposure.
- Reinforced Membrane for Mechanical Durability: Provides strong resistance to physical stress and thermal expansion effects.
- Fast Response & High Accuracy: Ensures reliable real-time pH monitoring even in fluctuating thermal conditions.
Optional Upgrades
- Custom Electrode Insertion Depths: Adaptable to power plant boiler systems or vertical tank installations.
- Membrane Customization: Optional HC (general-purpose) membrane available for less demanding process water applications.
- Cable & Connector Compatibility: Full range of industry-standard connectors (e.g. S8, S7, VP8, K8S) available.
- Cable Length Extension: Extendable up to 60 meters for remote or hard-to-access systems.
Typical Applications
- Power Generation Water Systems
- Boiler Feedwater and Steam Condensate Lines
- High-Temperature Pure Water Circuits
- Industrial Heat Recovery & Demineralized Water Monitoring
| Measuring Range | 0~14 pH |
| 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 | <50 MΩ |
| Zero Potential | <±10 mV |
| Response Time | <10 s |
| Junction Type | Annular PTFE |
| Reference Electrolyte | SRG Polymer Gel (low viscosity type) |
| Reference System Type | Double junction |
| Installation Thread | PG13.5 |
| Shell Material | Glass |
| Insertion Depth | 120/150/225/325/425 mm (customizable) |
| pH Sensitive Membrane | Ultra-low impedance membrane (HSL) |
| 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 |
Related Products
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 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 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
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


