ONETEST Introduces OZONE-500L: A Dual-Beam 254 nm Ozone Analyzer Redefining Portable Gas Monitoring

Shenzhen, China – ONETEST, a professional manufacturer of gas analysis and environmental monitoring instruments, is proud to announce the release of the OZONE-500L ozone concentration analyzer. Engineered around the dual-beam 254 nm ultraviolet (UV) absorption method and grounded in Beer-Lambert's law, this new-generation 254 nm ozone analyzer delivers exceptional precision for ozone measurement in water treatment plants, ambient air quality monitoring, sterilization processes, and industrial safety applications.

Measurement Performance You Can Rely On

The OZONE-500L achieves a class-leading resolution of 0.001 g/m³ and an accuracy of ±2% (FS), with a measurement range of 0–200 g/m³ (0–300 g/m³ customizable) and a fast response time of just 2 seconds. The instrument is fully compliant with HJ590-2010, GB/T37397-2019, and GB/T37894-2019, making it suitable for both laboratory reference use and on-site verification tasks.

Engineered for Long-Term Stability

Long-term drift is the biggest enemy of ozone measurement, and the OZONE-500L addresses it head-on. The analyzer features pressure and temperature compensation, automatic fault detection, and an automatic zero-point correction function that together prevent measurement deviations even after months of continuous duty. An imported ultraviolet electronic light source with a lifespan of up to 15,000 hours further reduces maintenance frequency, while the integrated aluminum alloy body ensures the unit remains sturdy and durable in demanding field environments.

Key Features at a Glance

• Dual-beam UV absorption technology for superior accuracy and stability
• High resolution of 0.001 g/m³ with ±2% (FS) accuracy
• Automatic zero-point calibration and fault self-diagnosis
• Rapid warm-up: ready to measure in just 60 seconds
• Built-in lithium battery supports up to 8 hours of continuous operation
• Light source rated for 24-hour continuous operation with a 15,000-hour lifespan
• USB data export in PDF, CSV, and TXT formats; onboard storage for 1,000,000 data sets
• Flexible outputs: RS485 (Modbus RTU), 4–20 mA, and 0–10 V
• 5-inch touchscreen display with intuitive operation

Technical Specifications

Wide Range of Applications

The OZONE-500L 254 nm ozone analyzer is ideal for municipal and industrial water treatment, swimming pool sanitation, ozone generator performance verification, food and pharmaceutical sterilization lines, ambient air quality monitoring, and occupational safety inspections. Its portable, lightweight form factor allows technicians to carry out accurate measurements across multiple sites in a single day.

Ordering and Global Availability

The OZONE-500L (model ONETEST-500L) is available for worldwide export with a flexible minimum order quantity of just 1 unit and a delivery time of 5–10 working days. Standard payment terms are T/T, and every unit is backed by ONETEST's professional after-sales support. For OEM/ODM inquiries, customized measurement ranges and configurations are available upon request.

About ONETEST: Based in Shenzhen, China, ONETEST specializes in the research, development, and manufacturing of high-precision gas analysis instruments for environmental protection and industrial applications, committed to providing reliable, standards-compliant monitoring solutions to customers worldwide.