Shenzhen Wanyi Technology Co., LTD

Tailored Solutions: Professional OEM/ODM Services

At ONETEST & CESTSEN, we understand that different industries, environmental monitoring projects, and global markets require unique technical specifications. With 15+ years of deep R&D and manufacturing experience in precision instrumentation, we offer comprehensive, end-to-end OEM and ODM services to global B2B clients, engineering firms, and system integrators. We transform your proprietary concepts into high-precision, market-ready realities.

Our Customization Capabilities

• Hardware & Structural Tailoring: > Whether your project demands a compact, handheld personal dosimeter or a heavy-duty outdoor monitoring station, our engineering team can modify enclosures, sensor interfaces, and internal circuitry. We specialize in both Integrated Systems and Split-type (Split-Main Unit) Architectures to optimize device performance in harsh, high-temperature, or humid industrial environments.

• Firmware & Communication Protocols: > We ensure our sensors and monitors seamlessly blend into your existing industrial networks. Our team provides custom firmware programming and supports various communication protocols, including standard RS485 Modbus RTU, analog outputs (4-20mA), and advanced wireless data transmission modules (4G/5G/LoRa).

• Software & App White-Labeling: > Enhance your brand identity with our tailored software solutions. We offer customization for PC evaluation software, cloud-based data management platforms, and mobile applications (Android & iOS). From incorporating your company logo and corporate identity to developing bespoke UI layouts and language localization, we provide a complete white-label ecosystem.

• Custom Branding & Packaging: > We provide comprehensive private-labeling services, including custom laser-engraved logos on instrument casings, specialized specification plates, tailored user manuals in multiple languages, and robust commercial packaging designed for secure international transit.

Our Standard OEM/ODM Workflow

1. Requirements Alignment: Comprehensive consulting on technical parameters, sensor ranges, application scenarios, and target compliance standards.

2. R&D & Feasibility Evaluation: Hardware schematic design, component selection, structural layouts, and software architecture evaluation.

3. Prototyping & Functional Testing: Rapid development of engineering samples for physical form, fit, and core functional verification.

4. Rigorous Calibration & Validation: Every customized prototype undergoes strict calibration in our specialized laboratories—utilizing standard radioactive sources (⁶⁰Co} / ¹³⁷Cs) or certified reference materials to guarantee absolute data integrity.

5. Batch Production & Quality Assurance: Streamlined manufacturing across our professional assembly lines, backed by 100% rigorous quality control testing before packaging.

6. Global Delivery & Support: Secure international packaging, prompt logistics arrangement, and continuous technical support for smooth local deployment.

Shenzhen Wanyi Technology Co., Ltd. integrates R&D, sales, after-sales service and technical consultation. It has passed the ISO9001 quality management system certification,ISO14001 environmental management system certification, and its products have obtained CMA, CE, ERP, metrology and other certifications.

Shenzhen Wanyi Technology Co., Ltd. integrates R&D, sales, after-sales service and technical consultation. It has passed the ISO9001 quality management system certification,ISO14001 environmental management system certification, and its products have obtained CMA, CE, ERP, metrology and other certifications.

Our R&D Strength: Engineering the Future of Sensing Technology

Our robust R&D capability is the cornerstone of our global market success. Composed of seasoned physicists, embedded engineers, and software developers, our team bridges cutting-edge science with practical industrial applications.

• Authoritative Expertise: Proud contributors to national and industrial testing standards for radiation and negative ion measurement.

• Hardware Innovation: Pioneers in rugged sensor designs, versatile split-type architectures, and advanced environmental adaptation technologies (such as dehumidification heating integrations).

• Digital Ecosystems: Comprehensive developers of secure PC analysis software, remote cloud platforms, and multi-lingual mobile apps (iOS & Android) that support universal industrial protocols like RS485 Modbus RTU.

Through strict experimental validation and continuous algorithmic refinement, our R&D team ensures every device we deliver offers unmatched stability, certified precision, and seamless integration for overseas buyers.

Meet the Experts Behind ONETEST & CESTSEN

At Shenzhen ONETEST Technology Co., Ltd. (WanYi Technology), our team is the driving force behind our industry-leading environmental and radiation monitoring solutions. Founded in 2011, we have brought together top-tier minds in precision instrumentation, software engineering, and calibration technology to build a cohesive team dedicated to global safety and environmental health.

1. R&D & Innovation Pioneers
Our research and development team consists of seasoned engineers and technical experts with extensive experience in nuclear radiation physics, air quality metrics, and advanced sensor architectures. As industry pioneers who have actively participated in drafting national and corporate standards for Air Negative Ion Measuring Instruments and Radiation Testers, our R&D team continuously pushes the boundaries of hardware design and core algorithms. From portable dosimeters to complex integrated online monitoring systems, they ensure our technology remains precise, innovative, and strictly compliant with international benchmarks like CE and CMA.

2. Precision Calibration & QC Specialists
Accuracy is our baseline, and our Quality Control team treats it as a sacred mission. Utilizing state-of-the-art calibration infrastructure—including standard radioactive sources like Cobalt-60 (⁶⁰Co) and Cesium-137 (¹³⁷Cs)—our specialized calibration personnel ensure that every single instrument undergoes meticulous testing and verification before leaving our facility. Supported by highly professional assembly lines, our manufacturing and QC teams possess the agility to respond quickly to bespoke customer requirements and custom OEM/ODM system integrations without ever compromising on data integrity. 

3. Global Sales & Responsive Technical Support
Operating across international markets, our sales and technical support team bridges the gap between sophisticated instrumentation and real-world industrial applications. Highly professional, multi-lingual, and deeply knowledgeable about global regulatory and import/export safety frameworks, they provide end-to-end assistance. Whether you need system integration protocols (such as RS485 Modbus RTU), software configurations, or real-time technical troubleshooting, our team is strictly committed to delivering seamless communication and dependable after-sales services to B2B buyers worldwide.