HH SCIENCE HH2800L Water Online Process pH SensorLow Temperature Medium Solution Electrode | LT Low-Temperature pH Membrane
Original price was: US$400.00.US$300.00Current price is: US$300.00.
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 HH2800L pH electrode is engineered to provide precise and stable pH measurement in low-temperature environments that can challenge or disable conventional sensors. Designed with a cold-resistant intermediate electrolyte, this electrode operates reliably in conditions as low as -25°C, without compromising accuracy or response time.
It features a dual-junction reference system that enhances chemical isolation and extends service life by resisting contamination and electrolyte poisoning. Its IP68 waterproof construction ensures durability in fully submerged or outdoor environments, while its chemically inert membrane maintains integrity even in the presence of strong acids, bases, or solvents.
The HH2800L is ideal for use in refrigerated processing systems, brine tanks, cold surface water bodies, antifreeze circuits, and laboratory cold room environments, making it a versatile choice for industrial and research settings alike.
Key Features
- Excellent Low-Temperature Resistance: Performs consistently in environments as cold as -25°C without compromising measurement precision or electrode responsiveness.
- Dual-Junction Reference System: Enhances longevity and signal stability by minimizing contamination and preventing reference poisoning.
- IP68 Waterproof Design: Supports continuous submersion in brine, cold process lines, or refrigerated laboratory setups.
- High Chemical Resistance: Compatible with strong acids, alkalis, and solvents, ensuring durability in chemically active low-temperature media.
- Outstanding Drift Stability: Maintains low signal and temperature drift over extended monitoring cycles.
- Reinforced Membrane Construction: Offers high resistance to physical shocks and impact, ideal for turbulent or mobile low-temp systems.
Optional Upgrades
- Custom Insertion Depths: Adjustable probe lengths to suit tanks, pipelines, or test rigs.
- Junction Upgrades: Single-point ceramic core can be upgraded to dual- or triple-point or converted into a ring-shaped PTFE junction for added stability and anti-clogging performance.
- Cable & Connector Customization: Full compatibility with industrial-grade connection types, including S8, VP8, S7, K8S, and more.
- Extended Cable Length: Available up to 60 meters for remote or difficult-access locations.
Typical Applications
- Refrigerated brine storage and dosing systems
- Antifreeze-treated fluid circuits in industrial processes
- Cold surface water analysis in environmental monitoring
- Low-temperature chemical processing or quality control
- Laboratory use in refrigerated or climate-controlled environments
| Measuring Range | 0~14pH |
| Temperature Range | -25~100℃ |
| Pressure Range | 0~3Bar, 6 Bar MAX |
| Temperature Compensation Types | NTC2.252K, NTC5K, NTC10K, NTC22K, NTC30K, PT100, PT1000 (optional) |
| Factory Slope | Better than 95% |
| Membrane Resistance | <250MΩ |
| Zero Potential | <±10MV |
| Response Time | <10S |
| Junction Type | Special porous ceramic core |
| Reference Electrolyte | PCG polymer gel (low-temperature customized type) |
| Reference Type | Double junction |
| Mounting Thread | PG13.5 |
| Shell Material | Glass |
| Insertion Depth | 120/150/225/325/425mm (customizable) |
| pH Sensitive Membrane | Acid-alkali resistant membrane (HA) |
| 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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