The RAD-S104 sensor probe features a US-made large-window mica GM tube for α/β/γ/X detection, built-in audio-visual alarm, RS485 Modbus output, and seamless integration with GM-R200 monitoring system. Factory calibrated for hospitals, X-ray rooms & security scanners.

Detect the Full Spectrum of Ionizing Radiation – With the Advanced RAD-S104 Sensor Probe

When your application demands reliable detection of alpha particles—not just gamma or X-rays—you need a radiation sensor that goes beyond standard capabilities. Meet the RAD-S104, a high-performance fixed radiation sensor probe engineered by Wanyi Technology under the trusted CESTSEN brand.

Designed for mission-critical environments like hospitals, pharmaceutical facilities, security checkpoints, and industrial radiography zones, the RAD-S104 combines ultra-sensitive detection, industrial-grade communication, and plug-and-play integration—making it the ideal choice for system integrators and safety professionals worldwide.

Unmatched Sensitivity: Detect Alpha, Beta, Gamma & X-Ray in One Unit

Unlike conventional GM probes limited to gamma/X-rays, the RAD-S104 features a premium U.S.-imported large-end-window mica Geiger-Müller (GM) tube—specially designed to detect:

• Hard alpha particles (α) – critical for contamination monitoring
• Beta radiation (β) – from isotopes like Sr-90 or P-32
• Gamma rays (γ) and X-rays – for ambient dose rate assessment

This full-spectrum capability enables rapid radioactive source localization, surface contamination checks, and leakage verification around X-ray equipment or nuclear medicine storage.

Built for Integration & Real-Time Response

The RAD-S104 is not just a detector—it’s a smart node in your radiation safety network:

✅ Factory Pre-Calibrated
Ready to use out of the box. No field calibration needed.

✅ RS485 Digital Output with Modbus-RTU Protocol
Seamlessly connect to PLCs, SCADA systems, or central monitors. Read real-time count rate or dose rate data directly via standard commands.

✅ Integrated Audio-Visual Alarm
Built-in buzzer and LED warning activate instantly when radiation exceeds preset thresholds—ensuring immediate on-site awareness.

✅ Designed to Pair with GM-R200 Host System
When connected to the GM-R200 online radiation monitoring terminal, the RAD-S104 becomes part of a powerful multi-zone surveillance network:

• Monitor up to 25 probes simultaneously
• View live data on a 7" touchscreen
• Receive remote alerts via optional 4G cloud platform

Ideal for High-Stakes Applications

The RAD-S104 sensor probe is deployed in:

• Hospital radiology & nuclear medicine departments – X-ray machine leakage testing
• Pharmaceutical cleanrooms – contamination control for radiopharmaceuticals
• Airport & cargo security scanners – operator safety monitoring
• Industrial NDT (non-destructive testing) – real-time field surveillance
• Environmental monitoring stations – ambient radiation baseline tracking

Its rugged metal housing, stable electronics, and humidity-resistant design ensure years of trouble-free operation.

Why Global Integrators Choose the RAD-S104