Is BOQU a manufacturer or a trading company?

BOQU is a manufacturer. Founded in 2007, Shanghai Boqu Instrument Co., Ltd. designs, produces and tests its sensors and analyzers in two Shanghai facilities (Kangqiao and Lingang) with 4,632 m² of floorspace, 200+ employees and an annual output of more than 100,000 instruments.

Which certifications do BOQU water quality instruments hold?

Production is managed under ISO 9001 and ISO 14001 systems, and products carry CE, SGS and FDA related certifications. The pH5806 high temperature pH sensor has also been awarded the Shanghai Brand certification.

What signal outputs and communication protocols are available?

Depending on the model, BOQU online analyzers provide 4-20 mA analog outputs, relay alarm contacts and RS485 Modbus RTU communication. IoT digital sensors output RS485 Modbus RTU directly, so they can connect to PLC, DCS, SCADA or cloud gateways without a separate transmitter.

Can BOQU sensors be used in high-temperature fermentation and steam sterilization?

Yes. BOQU operates a dedicated high-temperature water quality sensor laboratory, and its high-temperature pH and DO sensors such as the pH5806 and DOG-208FA are designed for bioreactors, fermenters and hot process lines that undergo repeated steam sterilization.

Do you offer OEM and ODM services?

Yes. BOQU supports OEM and ODM projects including private labeling, custom housings, cable lengths, measuring ranges, firmware and communication protocols, backed by an in-house R&D team.

What information should I provide to get the right analyzer recommendation?

Please share the parameters to measure, expected range, water type, process temperature and pressure, installation method (immersion, flow-through or pipeline), required output signal, power supply and any local compliance standard. BOQU engineers will then recommend a suitable configuration.

Wholesale High Temperature (0-130℃) pH Sensor Supplier, Factories

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Wholesale High Temperature (0-130℃) pH Sensor Supplier, Factories

★ Model No: PH5806-VP

★ Measure parameter: pH, temperature

★ Temperature range: 0-130℃

★ Features: High measurement accuracy and good repeatability, long life;

it can resist the pressure to 0~6Bar and endures the high-temperature sterilization;

PG13.5 thread socket, which can be replaced by any overseas electrode.

★ Application: Bio-engineering, Pharmaceutical, Beer, Food and beverages etc

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Product Description

Introduction

The high temperature pH electrode is independently developed by BOQU and has independent intellectual property rights. BOQU Instrument also built the first high temperature laboratory in China. Hygienic and high temperature pH electrodes for aseptic applications are readily available for applications where in-situ cleaning (CIP) and in-situ sterilization (SIP) are often performed.

These pH electrodes are resistant to the high temperatures and fast media transitions of these processes and are still in precision measurements without maintenance interruptions. These hygienic pH electrodes help you meet regulatory compliance requirements for pharmaceutical, biotech, and food/beverage production. Options for liquid, gel, and polymer reference solutions ensure your requirements for accuracy and working life, while the high pressure design is optimal for installation in tanks and reactors.

Technical Parameters

Parameter Measure	pH, Temperature
Measuring Range	0-14 pH
Temperature Range	0-130 ℃
Accuracy	±0.1 pH
Compressive Strength	0.6 MPa
Temperature Compensation	PT1000, 10K, etc.
Socket	VP
Cable	VP6
Dimensions	12x120, 150, 225, 275 and 325 mm

Features

Adopts heat-resisting gel dielectric and solid dielectric double liquid junction structure; withstands 0~6 Bar pressure without back pressure connection and can be directly used for 130℃ sterilization.

Eliminates the need for additional dielectric, requiring minimal ongoing maintenance.

Adopts standard S8 and PG13.5 thread sockets, allowing direct replacement for overseas electrodes.

Multiple electrode lengths available: 120, 150, 225, 275, and 325 mm to meet diverse installation needs.

Designed for seamless integration in conjunction with a 316L stainless steel sheath.

Fields of Application

Bio-engineering

Amino acids, blood products, gene technology, insulin, and interferon.

Pharmaceutical Industry

Antibiotics, vitamins, and citric acid processing.

Beer & Brewing

Brewing, mashing, boiling, fermentation, bottling, cold wort, and deoxy water.

Food & Beverages

Online measurement for MSG, soy sauce, dairy products, juice, yeast, sugar, drinking water, and related bio-chemical processes.

Frequently Asked Questions

What temperature and pH range can this electrode handle?

The electrode measures pH accurately within the 0–14 pH range and supports an operating temperature range of 0–130℃.

Is this pH electrode suitable for CIP and SIP sterilization procedures?

Yes, it is specifically designed for hygienic and aseptic applications, capable of withstanding in-situ cleaning (CIP) and in-situ sterilization (SIP) up to 130℃ without loss of precision.

What is the pressure limit without back pressure support?

When not connected to back pressure, the electrode withstands operating pressures between 0 to 6 Bar (0.6 MPa).

Can this electrode replace other international standard pH sensors?

Yes, it utilizes industry-standard S8 and PG13.5 thread sockets and VP/VP6 connection interfaces, making it directly compatible and interchangeable with overseas electrodes.

What insertion lengths are available for tank or reactor installation?

Standard lengths include 120 mm, 150 mm, 225 mm, 275 mm, and 325 mm, paired with a 316L stainless steel sheath for secure installation.