High-resolution view of the LT3700P pure water pH sensor, featuring its specialized low-impedance cylindrical sensitive membrane and durable glass housing.

LT3700P online pH sensor installed in a commercial swimming pool, demonstrating its IP68 waterproof rating and reliable performance in pure water monitoring applications.

Technical dimensions schematic of the LT3700P pH electrode, detailing the 165mm total length, 120mm standard insertion depth, and the PG13.5 installation thread.

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LT3700P Low Impedance Online pH Sensor for Pure Water

Trusted supplier offers the LT3700P online pH sensor , utilizing low-impedance double-junction technology for rapid, stable pure water measurements.

● Optimized for Pure Water Applications: Specifically designed for pure and clean water monitoring, the LT3700P excels in media with a conductivity range of 20-300 μS/cm by utilizing a specialized low-impedance cylindrical sensitive membrane.
● Superior Balance of Precision and Durability: This sensor perfectly combines the high measurement precision of laboratory electrodes with the robust mechanical shock resistance and higher temperature tolerance required for industrial-grade environments. It ensures accurate readings with a fast response time of under 10 seconds.
● Long-Lasting Structural Design: Engineered with a double liquid junction structure and a low-viscosity PCG polymer gel reference electrolyte, the electrode guarantees an extended service life while boasting an IP68 waterproof rating.
● Extensive Customization Capabilities: To meet diverse field and installation requirements, users can customize the electrode’s insertion depth (ranging from 120mm to 425mm), upgrade the standard single-point porous ceramic core to multi-point systems, and select various cable connection forms with lengths extendable up to 60 meters.

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Low Impedance pH Sensor Description

As a professional manufacturer and wholesale supplier, we proudly offer the LT3700P Low Impedance Online pH Sensor for Pure Water. This high-performance electrode features a specialized low-impedance membrane and double liquid junction design for fast, precise measurements. Engineered for clean water systems with 20-300μS/cm conductivity, it effectively solves signal fluctuations and slow response times common in low-conductivity media. Balancing laboratory accuracy with robust industrial mechanical shock resistance, it boasts an IP68 waterproof rating, customizable 120-425mm insertion depths, and 60m extendable cables. This is the ideal wholesale solution for water treatment plants and distributors seeking to enhance stability and reduce maintenance costs.

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Online Water Quality Sensor Technical Data Sheet

Measuring range:	0-14pH
Temperature range:	0-100°C
Pressure Rating:	0-3 bar, 6 Bar Max
Temp. compensation type:	NTC 2.252K / 5K /10K/22K/30K/ PT100/ PT1000 (optionaI)
Slope:	95%
Membrane resistance:	<100MQ
Zero potential:	<±10 mV
Response time:	<10 s
Salt Bridge Type:	Porous Ceramic Core
Reference electrolyte:	PCG polymer gel (Low viscosity standard type)
Reference type:	dual-salt bridge reference
Installation thread:	PG13.5
Housing material:	Glass
Insertion depth:	120/150/225/325/425 mm etc customizable
PH sensitive membrane:	Low resistance sensitive membrane (HL)
Cable connection:	S8/S8M/S7/VP8/K8S/K2, etc customizable

Pure Water Treatment pH Electrode Applications

Driven by its specialized low-impedance membrane, the LT3700P is distinctly engineered to overcome the common challenges of slow response and signal drift in low-conductivity environments (20-300 μS/cm). Here are the differentiated application areas where this pure water pH sensor excels:

Specialized Application Fields:
● Pure Water Treatment Systems: Specifically designed to provide rapid and stable measurements in highly purified water systems where standard industrial electrodes often struggle to maintain accuracy.
● Municipal Tap & Secondary Water Supply: Ensures precise, real-time water quality monitoring to maintain strict safety standards in tap water distribution networks and secondary supply infrastructure.
● Surface Water Environmental Monitoring: Delivers highly reliable environmental data for lakes, rivers, and reservoirs, effectively handling the natural variations found in clean surface water.
● Industrial Circulating Water: Ideal for monitoring clean cooling or circulating water in industrial plants, helping facilities prevent scaling and maintain optimal pH balance.
● Commercial Swimming Pools: Provides the fast response times (under 10 seconds) required to accurately manage dynamic pH levels in public and commercial swimming pools, ensuring safe and hygienic water conditions.

Low Impedance pH Sensor Display

Extra Information

Core Features and Benefits
● Optimal Media Compatibility: Specifically designed for media with a conductivity range of 20-300 μS/cm, guaranteeing precise measurements and fast response times.
● Long-Lasting Durability: Engineered with a reliable double liquid junction design that significantly extends the electrode’s overall service life.
● Robust Industrial Protection: Features a highly sturdy sensitive membrane that resists mechanical shock, completely protected by an IP68 waterproof rating for demanding environments.

Customization and Expansion Options
● Tailored Insertion Depths: The electrode’s insertion depth can be fully customized to seamlessly fit your specific installation requirements.
● Advanced Core Upgrades: The standard single-point porous ceramic core can be upgraded to a double-point or triple-point configuration for enhanced stability.
● Flexible Connectivity: We support the complete customization of various cable connection types to ensure easy system integration.
● Extended Cable Reach: For versatile and remote monitoring setups, the sensor’s cable length can be extended up to a maximum of 60 meters.