HH1000P Low-Conductivity Water pH Electrode
Original price was: US$205.00.US$154.00Current price is: US$154.00.
A cost-effective, low-impedance pH electrode for clean water with conductivity from 20 to 300 μS/cm. The HH1000P combines an HL glass membrane, long-path reference system, IP68 ABS-GF housing, and dual 3/4″ NPT threads for immersion or inline monitoring of tap, surface, pool, circulating, and general-purpose purified water.
Key Features:
- Ideal for 20–300 μS/cm conductivity range
- IP68 waterproof for submersible use
- Long-path reference system ensures signal reliability
- Low-impedance pH membrane for fast, accurate readings
- Dual 3/4″ NPT threads for easy inline or submersible installation
The HH1000P is a combination pH electrode developed for clean and relatively low-conductivity water, where conventional general-purpose electrodes may respond slowly or produce less stable signals. Its HL low-impedance glass membrane has a membrane resistance below 100 MΩ, supporting faster signal stabilization when connected to a compatible high-input-impedance pH transmitter.
The electrode uses a long-path reference system with low-viscosity PCG polymer-gel electrolyte and a ring-shaped PTFE junction. This construction is designed to provide a broad liquid-junction area while slowing the movement of process contaminants toward the internal reference element, supporting stable measurement during routine online operation.
A glass-fiber-reinforced ABS body provides mechanical rigidity and general chemical resistance for clean-water applications. The 180 mm housing includes 3/4-inch NPT threads at both ends, allowing the electrode to be integrated into compatible immersion holders, flow-through assemblies, pipelines, and water-treatment equipment. Its IP68-rated construction supports submerged installations when the cable and process connection are installed correctly.
The HH1000P is intended for water with conductivity between 20 and 300 μS/cm, including municipal tap water, surface water, swimming pools, circulating-water systems, secondary water supplies, and general-purpose purified water. It should not automatically be specified for ultrapure water below this conductivity range without application testing.
Key benefits
- Designed for lower-conductivity water: HL glass membrane with resistance below 100 MΩ supports responsive measurement in water from 20 to 300 μS/cm.
- Stable reference construction: Long-path reference system, low-viscosity polymer gel, and ring-shaped PTFE junction support consistent contact with the sample.
- Flexible installation: Dual 3/4-inch NPT threads accommodate compatible immersion and inline mounting arrangements.
- Durable housing: Glass-fiber-reinforced ABS construction provides mechanical rigidity for routine clean-water installations.
- Broad transmitter compatibility: Available with multiple NTC, Pt100, and Pt1000 temperature-sensor options.
- Configurable construction: Optional PPS housing, dual-junction reference, HC general-purpose glass, and extended cable lengths are available.
Configuration options
- PPS housing: For applications requiring greater chemical or thermal resistance than standard ABS-GF.
- Dual-junction reference: Adds a second separation barrier for more challenging water conditions.
- HC glass membrane: Available when a conventional general-purpose pH membrane is preferred.
- Extended cable: Cable lengths up to 60 metres, subject to transmitter compatibility and installation conditions.
- Integrated temperature sensor: Selectable to match the intended controller or transmitter.
Measurement and installation notes
Low-conductivity water is more sensitive to unstable flow, static charge, grounding, pressure changes, air exposure, and carbon-dioxide absorption. For best results, maintain consistent sample conditions and use a compatible high-input-impedance transmitter.
Automatic temperature compensation adjusts the electrode’s temperature-dependent response slope; it does not necessarily convert the sample to the pH it would have at 25 °C.
| Measuring Range | 0–14 pH |
| Temperature Range | 0–80 °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 | < 100 MΩ |
| Zero Potential (E₀) | < ±10 mV |
| Response Time | < 10 seconds |
| Salt Bridge Type | Ring-shaped PTFE junction |
| Reference Electrolyte | PCG polymer gel (low-viscosity standard type) |
| Reference System | Long-path reference junction |
| Process Connection | 3/4" NPT threads (top and bottom) |
| Housing Material | ABS with glass fiber reinforcement |
| Electrode Length | 180 mm |
| pH Sensitive Membrane | HL (Low-impedance type) |
| Cable Connection | Integrated direct-connection cable |
| 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, Circulating Water Systems, Environmental Monitoring, Municipal Water & Wastewater Treatment, OEM Water-Treatment Equipment, Purified Water, Secondary Water Supply |
| Parameters | pH |
Related Products
A configurable pH electrode for cold aqueous process liquids operating down to −25 °C. The HH2800L combines a low-temperature PCG reference electrolyte, HA glass membrane, double-junction reference, and PG13.5 connection for refrigerated brines, compatible antifreeze solutions, cold surface water, and chemical processes.
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
An ultra-low-impedance pH electrode for high-purity water with conductivity from 0.5 to 100 μS/cm. The HH2300P combines an HSL glass membrane, ground-glass junction, double-junction reference, and customizable PG13.5 construction for responsive online measurement in controlled low-conductivity water systems.
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
A robust glass-body pH electrode for wastewater and contaminated process liquids. The HH2100 combines a ring-shaped ceramic junction, double-junction reference system, and HA acid/alkali-resistant glass membrane to reduce sensitivity to junction contamination in suspended-solids and fouling-prone applications.
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
A membrane-based dissolved oxygen electrode designed to reduce routine servicing in wastewater and water-treatment systems. The HH6000 combines a sealed solidified-gel electrolyte, protected membrane structure, stainless-steel housing, integrated temperature element, and PG13.5 connection for measurement up to 40 mg/L or 400% saturation.
Key features
- Sealed solidified-gel electrolyte design
- No routine on-site electrolyte refilling
- Protected membrane structure for process use
- Measurement up to 40 mg/L or 400% saturation
- Integrated NTC 22K temperature element
- Stainless-steel housing with PG13.5 connection
- IP68-rated construction