Close-up of the LT3700 acid-alkali resistant glass pH sensor, featuring its robust cylindrical sensitive membrane.
LT3700 industrial online pH sensor installed in a dark wastewater treatment tank, demonstrating heavy-duty application capabilities.
Technical dimensions schematic of the LT3700 pH electrode, highlighting the PG13.5 installation thread and standard length.
Close-up of the LT3700 acid-alkali resistant glass pH sensor, featuring its robust cylindrical sensitive membrane.
LT3700 industrial online pH sensor installed in a dark wastewater treatment tank, demonstrating heavy-duty application capabilities.
Technical dimensions schematic of the LT3700 pH electrode, highlighting the PG13.5 installation thread and standard length.

Acid-Alkali Resistant LT3700 Industrial Online pH Sensor

Reliable supplier LOOTEST offers LT3700 industrial pH sensor with acid-alkali resistant membranes for precise monitoring in harsh chemical wastewater environments.

● Exceptional Durability & Mechanical Shock Resistance: The LT3700 features a robust, acid-and-alkali-resistant cylindrical pH-sensitive membrane with a thickness of 0.2-0.4mm, providing a large sensitive area that is highly resistant to mechanical impacts.
● Extreme Chemical & Pressure Tolerance: Engineered for severe industrial applications, this sensor effectively resists strong oxidizing media, solvents, and extreme acid-base solutions without undergoing chemical reactions. It can withstand process solution osmotic pressures up to a maximum of 6 Bar and operate in temperatures up to 100°C.
● Advanced Anti-Pollution & Stability Design: Utilizing a double liquid junction structure and a pressure-resistant PCG polymer gel reference system, this pH electrode offers superior anti-pollution capabilities and maintains excellent long-term time drift performance.
● High Accuracy Across Full Range: It provides fast and precise 0-14pH full-range measurements. The stability of the liquid junction potential is ensured by utilizing a porous ceramic core or a porous TEFLON salt bridge.
● IP68 Waterproof & Highly Customizable: Boasting an IP68 waterproof rating, the sensor also offers extensive customization capabilities. Users can customize insertion depths, upgrade the single-point porous ceramic core to two or three points, and select various cable connection types and lengths (up to 60 meters) to meet specific field requirements.

Cylindrical Sensitive Membrane pH Sensor Description

As a leading manufacturer and supplier, we offer the Acid-Alkali Resistant LT3700 Industrial Online pH Sensor for harsh environments. Featuring a robust 0.2-0.4mm cylindrical sensitive membrane, it provides exceptional mechanical shock resistance. Equipped with a pressure-resistant PCG polymer gel reference and porous ceramic or TEFLON salt bridge, it reliably withstands up to 6 Bar osmotic pressure and ensures a highly stable liquid junction potential. Renowned for resisting oxidizing media, solvents, and extreme acid-base solutions, this electrode helps wholesale distributors and factories improve process stability. Contact our company for bulk OEM orders.

Harsh Water pH Electrode 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: <250MQ
Zero potential: <±10 mV
Response time: <10 s
Salt Bridge Type: Porous Ceramic Core
Reference electrolyte: PCG polymer gel (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: Acid alkali sensitive membrane (HA)
Cable connection: S8/S8M/S7/VP8/K8S/K2, etc customizable

High Accuracy pH Probe Applications

Relying on its exceptional tolerance to strong oxidizing media, solvents, and harsh acid-base solutions, the LT3700 is purposefully engineered to provide stable and reliable monitoring across the most demanding and corrosive industrial sectors.

● Extreme Chemical Processing: Due to its exceptional tolerance to strong oxidizing media, solvents, and extreme acid-base solutions, the LT3700 is ideal for rigorous chemical media monitoring where standard sensors would quickly degrade.
● Heavy Industrial Wastewater Treatment: Its robust design and ability to withstand harsh conditions make it perfectly suited for managing complex and highly corrosive industrial wastewater.
● Electroplating & Surface Finishing: The sensor’s strong resistance to strong acids and alkalis ensures accurate, long-term measurements in the aggressive chemical baths used in electroplating facilities.
● Textile Printing & Dyeing: It is highly capable of handling the diverse chemical mixtures, dyes, and potential contaminants found in industrial printing and dyeing processes.
● Electronics Manufacturing: The LT3700 provides the necessary stability and precision required for the harsh chemical environments often encountered during electronic component production.

Wastewater pH Sensor Display

Extra Information

Heavy-Duty Acid-Alkali Resistant pH Sensor Features
The LT3700 features an IP68 waterproof glass body and a robust 0.2-0.4mm cylindrical sensitive membrane resistant to mechanical shock. Utilizing a double liquid junction design and a pressure-resistant PCG polymer gel reference system, it ensures outstanding long-term stability and anti-pollution capabilities. Furthermore, it does not chemically react with solvents or strong acid-base environments.

Durable Industrial Online pH Electrode Specifications
This high-performance electrode delivers precise 0~14pH full-range measurements and operates efficiently within a 0~100°C temperature range. It reliably withstands 0~3 Bar pressure (up to 6 Bar MAX) with a fast response time of under 10 seconds. Key technical parameters include a factory slope of >95%, membrane resistance of <250MΩ, and a standard PG13.5 installation thread. Multiple temperature compensation options (NTC and PT series) are also available.

OEM/ODM Water Quality Analyzer Customization Options
To meet diverse industrial requirements, we offer extensive expansion capabilities and customization services. Insertion depths can be tailored to various sizes, such as 120mm, 150mm, 225mm, 325mm, or 425mm. The standard single-point porous ceramic core can be upgraded to two or three points, or customized into an annular Teflon salt bridge. Additionally, we support various cable connection types (S8, VP8, K8S, etc.) with cable lengths extendable up to 60 meters.

Wholesale bulk pH Sensor Speciallize for Harsh Water

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