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Wanyi Technology Releases RAD-S80 Static Diffusion Radon Sensor with Planar Silicon Detector and RS485 Output

Wanyi Technology Releases RAD-S80 Static Diffusion Radon Sensor with Planar Silicon Detector and RS485 Output

2026-10-13

Wanyi Technology Introduces the RAD-S80 Static Diffusion Radon Sensor

Shenzhen, China — Shenzhen Wanyi Technology Co., Ltd. (brand: CESTSEN), a manufacturer of environmental monitoring instruments since 2011, has introduced the RAD-S80 static diffusion radon sensor. Combining a planar silicon detector with an electrostatic collection chamber, the RAD-S80 delivers accurate, continuous radon measurement across an exceptionally wide range, making it a reliable choice for homes, public buildings and demanding industrial monitoring systems.

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Static Diffusion, Electrostatic Collection

The RAD-S80 measures radon concentration through static air diffusion and electrostatic collection. Using the radioactive characteristics of radon gas and its daughters, the sensor collects alpha counts via a planar silicon detector and signal acquisition system, and then calculates the radon concentration to achieve long-term continuous monitoring of environmental radon levels.

Key Features

Feature Benefit
Planar Silicon Detector 113 mm² sensitive area with 0.063 cph/[Bq/m³] sensitivity enables accurate low-level radon measurement down to ≤2 Bq/m³.
Electrostatic Collection Chamber High measurement sensitivity and reliable alpha counting for continuous operation.
Humidity-Insensitive System Stable and repeatable readings across diverse environments.
Instantaneous & Average Values Reports both instantaneous and average radon concentration for short-term checks and long-term trend analysis.
Multi-Interface Output RS232, RS485 and 3.3V TTL serial output with configurable baud rate (2400–19200 bps).
Wide Measurement Range From 2 to 300,000 Bq/m³ for residential and demanding industrial applications.

Technical Specifications

Parameter Specification
Detector Planar silicon detector
Measurement Objects Radon and its daughters
Measurement Range 2 – 300,000 Bq/m³
Detection Sensitive Area 113 mm² (10.6 × 10.6 mm)
Sensitivity 0.063 cph/[Bq/m³] or 2.3 cph/[pCi/L]
Detection Limit ≤ 2 Bq/m³
Repeatability ≤10%, K=2 at 3000 Bq/m³
Power Supply +12V ~ +24V, 0.18 W
Communication RS232 / RS485 / 3.3V TTL, 2400–19200 bps
Operating Environment -10°C to +50°C, ≤90% RH
Dimensions 80 × 80 × 65 mm

Application Fields

  • Radon and its daughters measurement
  • Static radon measurement in home environments
  • Long-term air radon monitoring in public buildings and industrial sites
  • Integration into building monitoring systems, IoT nodes and laboratory instruments

Why Choose the RAD-S80?

The RAD-S80 combines a large-area planar silicon detector with an electrostatic collection chamber to deliver high sensitivity and a very wide dynamic range in a single compact module. Its humidity-insensitive measuring system ensures stable performance in real-world environments, while instantaneous and average concentration outputs support both rapid screening and long-term radon trend analysis. With RS232, RS485 and 3.3V TTL interfaces, the sensor integrates easily into existing monitoring and control systems.

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Packing & Delivery

Each RAD-S80 radon sensor is packaged in an anti-static protective bag with foam cushioning and shipped in export-grade corrugated cartons. Minimum order quantity is 1 piece, supply capacity is 5,000 pieces per month, and delivery time is 7–15 working days with T/T payment accepted. For bulk orders, OEM customization or technical inquiries, please contact Shenzhen Wanyi Technology Co., Ltd.

About Wanyi Technology

Shenzhen Wanyi Technology Co., Ltd. (CESTSEN) is a manufacturer located in Guangming District, Shenzhen, established in 2011. With the belief that "understanding the environment leads to a healthy new life," the company designs and produces environmental monitoring instruments exported to customers worldwide, with 70%–80% of its output serving export markets.