HH SCIENCE CORPORATION

Precision in Every Drop. Innovation in Every Detail.

Company Overview

Founded in 2014, HH SCIENCE (Wuhan Huanghe Scientific Instruments Co., Ltd.) is a privately held scientific instrumentation company headquartered in Wuhan, China. It was established following the restructuring of the former Wuhan Guangming Instrument Factory (under the Ministry of Nuclear Industry, Plant 265), bringing together a core team of veteran technical and sales professionals with deep expertise in electrochemical sensing. 

With more than 120 employees—including over 30 dedicated R&D engineers—HH SCIENCE focuses on the development and manufacture of advanced sensors and analytical instruments. Our annual revenue ranges between USD 8–10 million, with approximately 8% reinvested into research and development to support product innovation and process improvement. The company serves a broad portfolio of industries such as power generation (hydropower and nuclear), municipal and industrial wastewater treatment, chemical processing, pharmaceuticals, and food and beverage production. Our instruments are sold across Asia, Europe, and North America, both under the HH SCIENCE brand and as OEM solutions tailored for global equipment manufacturers. Our modern facilities integrate precision manufacturing, quality assurance, and application support under one roof—positioning HH SCIENCE as a trusted, innovation-driven supplier of electrochemical sensing solutions.

Key Facts

• Established: 2014
• Headquarters: Wuhan, China
• Employees: 120+ (including over 30 R&D professionals)
• R&D Investment: ~8% of annual revenue
• Annual Revenue: US$ 8–10 million
• Export Markets: Asia, Europe, North America
• OEM Partnerships: Multiple global brands in the environmental and process control sectors

Our product line serves a wide range of industries, including:

1. Power Generation (Hydropower, Nuclear)
2. Water and Wastewater Treatment
3. Chemical Processing
4. Pharmaceuticals & Biotechnology
5. Food & Beverage

Brand Name Explanation

“HH SCIENCE” stands for “Huanghe Science” — a modern, globally palatable brand identity that pays homage to the company’s roots while reflecting its ambition for international leadership in sensor technology. It suggests high-tech precision and a deep commitment to scientific innovation.

Core Competencies

HH SCIENCE has earned its reputation through rigorous focus on sensor engineering, material science, and application-specific customization. Our core strength lies in the in-house design and precision manufacturing of high-performance electrochemical electrodes and process sensors. We have successfully developed a proprietary technique for blowing pH glass membranes, closely matching the performance benchmarks of world-class manufacturers like Endress+Hauser. This includes tight control over bubble size, membrane thickness, and surface homogeneity—critical for high-precision, long-life pH measurements in both industrial and laboratory environments.

Our sodium ion (Na⁺) electrodes are formulated with multiple glass and solid-state matrix recipes, designed for environments ranging from ultrapure water in power plants to complex matrices in chemical reactors. For oxidation-reduction potential (ORP) measurement, HH SCIENCE manufactures a full portfolio of Redox electrodes, using platinum, gold, or custom metal alloys as sensing elements—each tailored to the client’s oxidation environment. We also offer over ten distinct designs of conductivity sensors, ranging from traditional two-electrode cells to high-conductivity toroidal (inductive) types, optimized for aggressive process conditions and hygienic requirements alike.

• Proprietary manufacturing processes for pH electrodes, including glass membrane blowing techniques comparable to global leaders such as Endress+Hauser
• Advanced formulations and structural designs for Na+ (Sodium) electrodes
• Custom development of ORP (Redox) sensors for varied oxidation environments
• Precision designs of conductivity sensors in over ten variants for diverse industrial needs
• OEM/ODM services tailored to the unique application requirements of global clients
• Standardized production protocols for traceable quality and performance consistency

Every HH SCIENCE sensor is backed by a tightly standardized production protocol and traceable calibration process. In addition to our core portfolio, we offer full-scale OEM and ODM services, enabling clients to co-develop exclusive solutions that align with their systems, certifications, and branding requirements. Our engineering team works directly with OEM customers to design sensors and instruments that integrate mechanically, electrically, and functionally with their platforms—ensuring reliability, scalability, and market differentiation.

Strategic Collaborations

At HH SCIENCE, collaboration is central to our innovation strategy. One of our most impactful partnerships has been the technical exchange with Endress+Hauser engineers, focusing on the refinement of pH sensor membrane technologies. This collaboration led to substantial enhancements in our own glass-blowing procedures—particularly in controlling bubble morphology, increasing mechanical strength, and optimizing ion-exchange performance. These improvements have elevated our pH sensors to a competitive global standard, with durability and sensitivity matching many Tier 1 products in the market.

Beyond product development, HH SCIENCE maintains cooperative relationships with universities and technical institutes in China, including Wuhan University and Huazhong University of Science and Technology. These partnerships support research into next-generation sensor chemistries and signal conditioning technologies. Our joint research projects include the development of biosensors, integrated smart probes with Modbus and HART protocols, and sensors capable of operating in high-temperature, high-pressure environments found in nuclear or geothermal applications.

Our OEM partners—ranging from national environmental monitoring system integrators to European water analytics brands—depend on HH SCIENCE for rapid prototyping, rigorous customization, and dependable supply chain execution. In return, these collaborations inform our roadmap for material sourcing, firmware development, and packaging innovation. We also host technical workshops and factory training sessions for partner engineers and sales professionals to ensure seamless integration and support. Through this global co-development ecosystem, HH SCIENCE continually pushes the frontier of what’s possible in industrial sensor technology.