Whether you manage a hospital radiology room, a CT suite, or an industrial X-ray inspection facility, installing a fixed radiation dose alarm is not optional — it is a critical safety requirement. This guide covers how to choose the right device, what technical specifications matter most, and why the CESTSEN MR-50X/L Online Radiation Monitor is one of the most cost-effective solutions available today.
Why Radiology Departments Need a Fixed Radiation Dose Alarm
X-ray equipment, fluoroscopy systems, and CT scanners all emit ionizing radiation. Even at low doses, cumulative exposure poses health risks to radiologists, technicians, and supporting staff. A fixed radiation dose alarm installed on the wall of your X-ray room provides:
-Continuous real-time monitoring of ambient radiation levels
-Instant alerts when dose rates exceed safety thresholds
-Data logging for compliance reporting and regulatory inspections
-Peace of mind for both staff and hospital administrators
Regulatory bodies in most countries — including those following IAEA, EU, and Chinese GB standards — require documented radiation monitoring in controlled areas. A certified fixed monitor is your first line of defense.
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Introducing the CESTSEN MR-50X/L: A Professional Wall-Mounted Radiation Monitor
The MR-50X/L Online Radiation Monitor, developed under the CESTSEN brand by Shenzhen WanYi Technology Co., Ltd. (ONETEST Technology), is purpose-built for permanent installation in environments where radiation safety is paramount — including hospital radiology departments, nuclear medicine rooms, customs inspection stations, and industrial NDT facilities.
It is the fixed-installation successor to the popular MR-50 portable detector, engineered for 24/7 unattended operation.
Key Technical Specifications
| Parameter | MR-50L | MR-50X |
|---|---|---|
| Measurement Rays | α, β, γ, X-rays | γ, X-rays |
| Measurement Range | 0.01–1000 μSv/h / 0.001–100 mR/h / 0–5000 CPS | Same |
| Relative Basic Error | ≤ ±15% | ≤ ±15% |
| Sensor | Imported Geiger-Müller (GM) tube | Imported GM tube |
| Energy Range | 20 keV – 3 MeV | 20 keV – 3 MeV |
| Data Output | RS485 | RS485 |
| Alarm Type | Sound & light threshold alarm | Sound & light threshold alarm |
| Power Supply | 12–24 V DC | 12–24 V DC |
| Working Current | 25–70 mA | 25–70 mA |
| Installation | Wall-mounted | Wall-mounted |
| Dimensions | 187 × 90 × 47 mm | 187 × 90 × 47 mm |
| Weight | 460 g | 460 g |
| Certification | CE | CE |
MR-50L is recommended for radiology environments where alpha particle surface contamination monitoring is also required.
MR-50X is optimized for standard X-ray and gamma ray detection in medical imaging departments.
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Reasons the MR-50X/L Is Ideal for Hospital Radiology Rooms
1. Proven GM Tube Sensor — More Accurate Over Time
The MR-50X/L uses an imported mica Geiger-Müller counter tube, a technology trusted in nuclear physics for decades. Unlike semiconductor sensors that may drift, the GM tube delivers a unique advantage: the longer it operates, the more stable and accurate the readings become. This makes it ideal for permanent installation.
2. Real-Time Multi-Ray Detection
The device simultaneously monitors γ, and X-rays (MR-50X) or adds α-ray detection (MR-50L), covering the full spectrum of radiation types generated by standard diagnostic imaging equipment.
3. Instant Sound & Light Alarm
When dose rates cross your preset safety threshold, the MR-50X/L triggers an on-site sound and light alarm immediately. There is no delay, no missed alerts. Staff can evacuate or take corrective action in seconds.
4. Smart Cloud Platform Integration
The MR-50X/L connects to ONETEST Technology's cloud monitoring platform, allowing hospital safety officers to:
-View live radiation readings remotely via computer or smartphone
-Receive WeChat, SMS, and email push notifications when alarms trigger
-Download historical data for compliance audits
-Manage multiple monitoring points across an entire facility from one dashboard
5. Easy RS485 Integration for Hospital BMS
With standard RS485 output and Modbus-RTU protocol, the MR-50X/L integrates seamlessly into hospital building management systems, existing SCADA platforms, or the ONETEST GM-R200 multi-point radiation monitoring host — no proprietary middleware required.
Typical Applications in Radiology and Medical Facilities
The MR-50X/L is wall-mounted and operates continuously, making it the preferred choice for:
-Diagnostic X-ray rooms — DR, CR, fluoroscopy suites
-CT scanning rooms
-Nuclear medicine departments — monitoring I-131, Tc-99m, Co-60, Cs-137 isotopes
-Radiation therapy rooms — linear accelerators, gamma knife therapy
-Hospital corridors and control rooms adjacent to controlled areas
-Customs and border inspection X-ray portals
-Industrial NDT laboratories
-Radioactive waste storage areas
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What Is the Price of the CESTSEN MR-50X/L?
The factory price of the MR-50X/L is highly competitive compared to equivalent European or American fixed radiation monitors — reflecting ONETEST Technology's position as a CE-certified, ISO 9001-qualified manufacturer with over a decade of radiation instrument production experience.
Pricing varies based on:
Single unit vs. bulk order quantity
Optional cloud platform subscription
Integration with GM-R200 monitoring host
Customized alarm thresholds or communication protocols