Shenzhen, China — August 2026 — Wanyi Technology, operating under the trusted brand CESTSEN, announces the launch of the RAD-S50 Radon Gas Sensor Module, a state-of-the-art silicon detector engineered for continuous, high-precision indoor radon monitoring. Designed to meet the growing global demand for reliable indoor air quality solutions, the RAD-S50 delivers exceptional sensitivity and ultra-low power consumption in an ultra-compact form factor.
Radon gas (²²²Rn) is a naturally occurring radioactive gas recognized by the World Health Organization as the second leading cause of lung cancer after smoking. As awareness of indoor radon hazards grows worldwide, the need for accurate, accessible, and easy-to-integrate radon monitoring solutions has never been greater. The RAD-S50 addresses this need head-on with its innovative silicon detector technology and passive static diffusion sampling method.
Unlike traditional pump-based radon monitors that require frequent maintenance and consume significant power, the RAD-S50 employs a completely passive design — no pumps, no fans, zero moving parts. Radon gas diffuses naturally into the detection chamber, where a large-area 100mm² silicon detector captures alpha particle emissions from radon decay. An advanced onboard signal processing algorithm converts these measurements into precise radon concentration values ranging from 5 to 65,535 Bq/m³.
| Feature | Description |
|---|---|
| Detection Technology | 100mm² high-sensitivity silicon detector with 0.027 cph/[Bq/m³] sensitivity |
| Measurement Range | 5 – 65,535 Bq/m³, with detection lower limit ≤5 Bq/m³ |
| Sampling Method | Static diffusion — no pump or fan required, maintenance-free operation |
| Power Consumption | ≤150μW at 3.0V DC — ideal for battery-powered IoT deployments |
| Communication | Dual interface: UART (9600 bps) and I²C (≤400 kHz) |
| Dimensions | Ultra-compact 60 × 60 × 21 mm for seamless integration |
| Environmental Tolerance | 0℃ to +45℃ operating, ≤90% RH; humidity-insensitive measurement |
The RAD-S50 is purpose-built for a wide range of indoor radon monitoring scenarios:
With its dual UART and I²C communication interfaces, the RAD-S50 offers plug-and-play compatibility with popular MCU platforms including Arduino, ESP32, STM32, and Raspberry Pi. Adjustable firmware parameters allow developers to customize measurement intervals, alarm thresholds, and data output formats to meet specific application requirements. Comprehensive technical documentation and reference designs are available to accelerate product development cycles.
The RAD-S50 Radon Gas Sensor Module is available for immediate sampling and volume ordering. Key commercial terms include:
| Parameter | Details |
|---|---|
| Minimum Order Quantity | 1 Piece |
| Supply Capacity | 5,000 Pieces per Month |
| Delivery Time | 7-15 Working Days |
| Payment Terms | T/T |
| Place of Origin | Shenzhen, China |
For technical inquiries, volume pricing, OEM customization requests, or to request an evaluation sample, please contact the CESTSEN sales team at Wanyi Technology. Join the growing number of businesses worldwide that trust CESTSEN for reliable, high-performance environmental sensor solutions.
