HH SCIENCE HH2100 Water Online Process pH Sensor | Glass Body Electrodes | Ceramic Double Junction | Anti-Fouling | Clog-Resistant | Longevity
US$205.00 Original price was: US$205.00.US$154.00Current price is: US$154.00.
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
- 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 HH2100 is a robust, industrial-grade pH electrode engineered specifically for harsh and high-contamination environments such as wastewater treatment and gas scrubbing systems. It combines a ring-shaped ceramic junction with a double-junction reference system, dramatically improving resistance to clogging, fouling, and reference poisoning in media rich with suspended solids, biological matter, or chemical residues.
Built for endurance, the HH2100 features a reinforced pH glass membrane with excellent mechanical shock resistance, making it suitable for long-term deployment in high-flow or abrasive systems. Its IP68 waterproof rating enables safe submersible operation, while its wide measurement range (0–14 pH) and stable slope ensure precise, reliable data even under variable conditions.
As one of HH Science’s flagship products, the HH2100 balances premium anti-contamination technology with rugged construction, making it a go-to choice for engineers and technicians working in complex, demanding water and wastewater treatment processes.
Key Features
- Anti-Fouling Ceramic Junction: Ring-shaped design resists clogging in high-solid or bioactive samples
- Double-Junction Reference: Offers superior resistance to reference poisoning and chemical interference
- Reinforced pH Glass Membrane: High-impact resistance and long-term mechanical durability
- IP68 Waterproof Design: Suitable for submerged or inline installations
- Wide pH Range (0–14): Ensures measurement accuracy across full spectrum with excellent slope stability
Optional Upgrades
- Custom Insertion Depth: Tailored sensor length available for process-specific requirements
- Cable & Connector Variants: Compatible with a wide range of industrial control systems
- Low-Impedance (HL) Membrane: Available for fast response in low-conductivity or specialized media
- Cable Extension: Extendable up to 60 meters for flexible deployment
Typical Applications
- Domestic and municipal sewage treatment
- Industrial wastewater monitoring and control
- Integration with automated water treatment equipment
- Flue gas desulfurization and exhaust gas scrubbing systems
- Semiconductor industry effluent monitoring
- Metallurgical and mining wastewater processes
| Measuring Range | 0–14 pH |
| Temperature Range | 0–100 °C |
| Pressure Range | 0–3 Bar |
| 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 ceramic junction |
| Reference Electrolyte | PCG polymer gel (standard formulation) |
| Reference System | Double-junction reference system |
| Process Connection | PG13.5 threaded connector |
| Housing Material | Glass body |
| Insertion Lengths (Customizable) | 120 / 150 / 225 / 325 / 425 mm |
| pH Sensitive Membrane | HA (Acid/Alkali-resistant membrane) |
| Cable Connections (Customizable) | S8, S8M, S7, VP8, K8S, K2 |

| 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 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 HH2300P is a precision-engineered pH electrode with a ground glass junction and ultra-low impedance membrane, delivering fast and accurate measurements in ultra-pure and low-conductivity water environments.
Key Features:
- Designed for ultra-pure water (0.5–100 μS/cm conductivity)
- Ground glass junction for stable ion exchange
- Ultra-low impedance membrane for rapid response
- IP68-rated for continuous immersion
- Double-junction reference system ensures long-term signal stability
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 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


