Our Story
Shenzhen IoT fire sensor factory for OEM & ODM partners
Particlesensing is a Shenzhen-based manufacturer of IoT-connected fire sensors and fire safety systems, supplying certified hardware and cloud-ready firmware to OEM and ODM partners in 47+ countries—not a trading company.
25 years later, 2.5M+ units shipped with 0.3% field failure rate. We remain owner-operated in Shenzhen with Hong Kong sales support—focused on helping distributors pass certification the first time.
What We Stand For
These aren't just words on a wall. They're the principles that guide every decision we make, from product design to customer support.
Safety First, Always
Every product we make could save a life. That responsibility shapes every decision we make, from component selection to final testing.
Practical Innovation
We don't chase trends. We solve real problems. Our R&D focuses on making fire detection more reliable, more affordable, and easier to install.
Partnership, Not Just Sales
Our customers become long-term partners. We succeed when you succeed, which is why we offer certification support, technical guidance, and responsive service.
Quality Without Compromise
EN 14604 certification is our baseline, not our ceiling. Every batch is tested. Every shipment is inspected. No shortcuts, no exceptions.
Our Journey
From a small workshop to a global manufacturer, here's how we got here.
2001
Founded in Shenzhen
Started as a small workshop focused on smoke detector design and manufacturing
2008
EN 14604 Certification
Achieved European fire safety certification for photoelectric smoke alarm products
2014
Expanded to 15,000m² Factory
Built current facility with dedicated R&D lab and automated SMT production lines
2018
Launched IoT Product Line
Introduced LoRaWAN sensors and cloud-connected fire monitoring systems
2022
Global Distribution
Products distributed in 47+ countries through OEM and distributor partners
2024
AI Fire Detection
Added AI fire camera SKUs with optional video verification workflows
Organization & Capabilities
Functional teams supporting manufacturing, quality, engineering, and export—structured for OEM and ODM partner programs.
Manufacturing
SMT assembly, injection molding, and vertically integrated production in our Shenzhen facility.
Quality & Testing
IQC, IPQC, and OQA processes with EN 54 smoke sensitivity testing and batch traceability.
R&D & Engineering
In-house development for LoRaWAN firmware, sensor platforms, and OEM/ODM customization.
Export & Partner Support
Certification documentation, distributor onboarding, and multilingual technical support.
What We Build
Our 15,000m² facility in Shenzhen produces everything from basic smoke detectors to advanced AI-powered fire cameras. We control every step of the process—design, assembly, testing, and certification—because quality can't be outsourced.
Whether you need 100 units or 100,000, white-label products or custom designs, we have the capacity and expertise to deliver.
Production
Automated SMT assembly lines
R&D Lab
In-house product development
Quality Control
100% batch testing
Logistics
Global shipping hub
Let's Talk
Whether you're looking for a manufacturing partner, exploring custom product development, or just want to learn more about what we do—we'd love to hear from you. Factory tours are always welcome.