Wanyi Technology Unveils RAD-S50 Radon Sensor Module for Continuous Indoor Radon Monitoring

Shenzhen, China — Wanyi Technology (brand: CESTSEN) has officially launched the RAD-S50 radon sensor module, a high-performance silicon-detector-based solution engineered for long-term, continuous monitoring of radon gas concentration in indoor environments. The new radon sensor module strengthens the company’s environmental monitoring product portfolio and serves residential, commercial, and industrial applications where radon exposure assessment is essential.

Why Radon Monitoring Matters

Radon is a naturally occurring radioactive gas that can accumulate in buildings and is the second leading cause of lung cancer after smoking. According to the World Health Organization (WHO), radon exposure is estimated to cause between 3% and 14% of lung cancer cases worldwide. The RAD-S50 radon sensor module enables property owners, facility managers, and health authorities to continuously track radon levels and act before concentrations become hazardous.

Technology Highlights

The RAD-S50 radon sensor module measures radon gas concentration through the principle of static diffusion. Radon decay products are collected on a large-area silicon detector with a 100mm² sensitive area (10×10mm), and an advanced signal acquisition system converts alpha counts into precise concentration readings. Key technical highlights include:

• Wide measurement range: 5 to 65,535 Bq/m³ with a detection lower limit of ≤5 Bq/m³
• High sensitivity: 0.027 cph/[Bq/m³] (0.982 cph/[pCi/L])
• Ultra-low power consumption: ≤150μW at 3.0V DC — ideal for battery-powered IoT devices
• Dual communication interfaces: UART (9600 bps) and I²C (≤400 kHz) for flexible MCU integration
• Maintenance-free design: passive static diffusion sampling with no pump or fan
• Humidity-insensitive measurement: stable readings across diverse indoor environments
• Compact form factor: 60×60×21mm for space-constrained device integration

Technical Specifications at a Glance

Application Scenarios

• Indoor radon measurement: continuous monitoring in residential, office, and public buildings for health risk assessment
• Environmental radiation monitoring: long-term background radon surveys at geological, mining, and construction sites
• IoT sensor networks: integration into wireless nodes for distributed indoor air quality monitoring
• Laboratory research: radon gas behavior studies, material emission testing, and calibration reference measurements
• Smart building systems: embedded radon sensing for active HVAC control and ventilation optimization

Easy Integration for Product Developers

The RAD-S50 radon sensor module provides plug-and-play compatibility with popular MCU platforms including Arduino, ESP32, STM32, and Raspberry Pi. Adjustable parameters allow customization of measurement intervals, alarm thresholds, and data output formats to meet diverse application requirements, making it the ideal radon sensor module choice for air quality device manufacturers and system integrators.

Availability & Ordering

The RAD-S50 radon sensor module is available for order now with a minimum order quantity of 1 piece and a supply capacity of 5,000 pieces per month. Delivery time is 3–10 working days, and payment is accepted via T/T. OEM customization and technical inquiries are welcome. For more information, please contact Wanyi Technology (Shenzhen, China).