HH SCIENCE HH2000P Pure Water Online Process pH Sensor | Glass Body Electrodes
US$300.00 Original price was: US$300.00.US$220.00Current price is: US$220.00.
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
- 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.
- Ask a Question
The HH SCIENCE HH2000P is a specialized pH electrode tailored for high-precision monitoring of clean and purified water. Designed with a low-impedance pH-sensitive glass membrane, it delivers rapid response and exceptional accuracy in low-conductivity environments—such as tap water, surface water, swimming pools, and circulating purified water.
This model leverages a long-path reference system and an annular PTFE (Polytetrafluoroethylene) salt bridge, which together enhance resistance to reference poisoning, clogging, and contamination. These features ensure outstanding long-term measurement stability, especially in continuous inline or flow-through pipeline installations.
The HH2000P blends the high sensitivity of laboratory-grade sensors with the mechanical robustness and chemical resistance expected from industrial-grade designs. The IP68-rated construction ensures reliable operation under submerged conditions, while optional upgrades enable customization for a wide variety of process integration needs.
Key Features
- Low-Conductivity Measurement: Suitable for 20–300 μS/cm conductivity range
- Low-Impedance pH Membrane: Enables fast stabilization and high measurement fidelity
- IP68 Waterproof Rating: Ensures safe deployment in submersion and pipeline environments
- Long-Path Reference System: Enhances resistance to signal drift and reference poisoning
- PTFE Ring Salt Bridge: Anti-fouling, anti-blocking design for stable liquid junction in dynamic flow systems
Optional Upgrades
- Custom Insertion Depth: Tailored probe length for specific installation geometries
- Dual-Junction Reference Option: Enhanced chemical resistance in harsh media
- Cable & Connector Options: Custom cable types and industrial-grade connectors available
- Extended Cable Length: Cable length can be extended up to 60 meters
Typical Applications
- Swimming pool water quality control
- Closed-loop circulating water systems
- Surface water monitoring in environmental stations
- Municipal tap water distribution analysis
- Secondary water supply systems
- General-purpose pure water measurement in industrial and utility facilities
| Measuring Range | 0–14 pH |
| Temperature Range | 0–80 °C |
| Pressure Range | 0–3 Bar (up to 6 Bar max with reinforced configuration) |
| Temperature Compensation Options | NTC 2.252K, NTC 5K, NTC 10K, NTC 22K, NTC 30K, PT100, PT1000 (optional) |
| Factory Calibrated Slope | Better than 95% |
| Membrane Resistance | < 250 MΩ |
| Zero Potential (E₀) | < ±10 mV |
| Response Time | < 10 seconds |
| Salt Bridge Type | Ring-shaped PTFE junction |
| Reference Electrolyte | PCG polymer gel (standard formulation) |
| Reference System | Long-path reference junction |
| Process Connection | PG13.5 threaded connector |
| Housing Material | Glass body |
| Insertion Lengths (Customizable) | 120 / 150 / 225 / 325 / 425 mm |
| pH Sensitive Membrane | HC (General-purpose type) |
| Cable Connections (Customizable) | S8, S8M, S7, VP8, K8S, K2, and other connector types available |

| 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 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 HH2500P is a precision-engineered pH electrode optimized for clean and pure water applications, featuring a low-impedance cylindrical membrane and dual-junction design for high measurement accuracy, rapid response, and mechanical durability.
Key Features:
- Designed for 20–300 μS/cm conductivity range
- Dual-junction reference system for extended lifespan
- IP68-rated for continuous submersion
- Low-impedance membrane for fast and accurate readings
- Durable cylindrical membrane resists mechanical stress
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 HH5200i is a digital two-electrode conductivity sensor with an integrated microprocessor and graphite sensing element, offering direct RS485 output, high chemical resistance, and reliable measurement across a broad conductivity range.
Key Features:
- Wide-range conductivity measurement
- Built-in microprocessor with RS485 Modbus output
- Graphite electrode for acid/alkali corrosion resistance
- No need for multiple cell constants
- IP68 waterproof and submersible
- G3/4 threaded body for inline or immersion use


