CESTSEN Introduces the RAD-S51 Alpha Particle Radon Sensor for Continuous Indoor Radon Monitoring

Shenzhen Wanyi Technology Co., Ltd (CESTSEN) is proud to announce the launch of the RAD-S51, a new-generation alpha particle radon sensor engineered for accurate, long-term monitoring of radon gas concentration in indoor environments. By combining a high-sensitivity silicon detector with a static diffusion measurement principle, the RAD-S51 delivers dependable radon data for occupational health programs, industrial and mining safety, and regional environmental monitoring.

How the Alpha Particle Radon Sensor Works

The RAD-S51 measures radon concentration through the static diffusion of air. Leveraging the radioactive decay properties of radon gas and its progeny, the sensor collects alpha counts through a silicon detector and a dedicated signal acquisition system, and then calculates the radon gas concentration. This architecture enables continuous, unattended monitoring over extended periods, making it an ideal choice for permanent radon surveillance installations.

Unlike many conventional instruments, the measurement system of the RAD-S51 is not sensitive to humidity, which ensures stable readings even in damp basements, mines, and other high-humidity environments where radon tends to accumulate.

Key Advantages of the RAD-S51

• Humidity-insensitive measurement system — consistent performance in high-humidity conditions.
• Large-sized collection chamber — high measurement sensitivity for low-level radon detection.
• Wide measurement range — from 5 to 300,000 Bq/m3, covering both background and elevated levels.
• Adjustable parameters — configurable settings to meet various data collection requirements.
• Low power consumption — well suited to battery-powered and remote deployments.

Technical Specifications

Application Fields

• Occupational health environment radon gas measurement
• Static radon measurement in industrial and mining environments
• Regional long-term air radon monitoring in the ecological environment
• Indoor air quality assessment for homes, schools, and workplaces

Why Choose CESTSEN

As a specialized manufacturer of radiation detection instruments, CESTSEN focuses on delivering accurate, robust, and cost-effective sensing solutions for global partners. Every RAD-S51 unit is built around a carefully selected silicon detector and a proven signal acquisition design, allowing integrators and distributors to embed reliable radon monitoring into their own systems with confidence.

Availability and Support

The RAD-S51 alpha particle radon sensor is now available to distributors, system integrators, and environmental monitoring projects worldwide. CESTSEN offers flexible OEM and ODM support, batch pricing, and full technical documentation. Contact us today for samples, quotations, and datasheets.