CESTSEN GM-300 Portable Radiation Detector: A Professional Manufacturer's Solution for Nuclear Safety

Shenzhen Wanyi Technology Co., Ltd., a certified high-tech enterprise specializing in radiation measurement equipment since 2011, proudly presents the CESTSEN GM-300 series portable radiation detector. As an established portable radiation detector manufacturer, we combine more than a decade of engineering expertise with strict quality control to deliver instruments trusted by professionals in nuclear safety, medical, industrial and environmental sectors around the world.

Precision Detection for Multiple Radiation Types

The GM-300 series measures alpha, beta, gamma and X-ray radiation with high precision. Featuring an elegant, compact design, a bright TFT LCD display and sound, light and vibration alarms, it delivers excellent performance for monitoring radiation in a wide variety of environments. Its lightweight body and online charging capability make it ideal for field professionals working with isotopes, radiation devices, material processing and personal dose monitoring.

Available Models and Specifications

Key Features

• Ingenious, compact design with a clear TFT LCD display
• Sound, light and vibration alarm modes with a user-settable threshold
• Multiple GM tube and semiconductor detector options
• Wide measurement range and a trend graph for the past hour with auto max/average values
• Fast Mode and Smooth Mode measurement settings
• Cumulative dose and cumulative time functions (1–9999 minutes)
• 2200mAh 3.7V lithium battery with Type-C charging (full charge in under 6 hours)
• Compact size of 120 × 58 × 28.5 mm and a weight of approximately 120g

Typical Applications

• Detection of radiation leaks and contamination
• Environmental radiation monitoring in air and water
• Facility inspections (warehouses, ports, medical facilities, nuclear plants)
• Building material and home decoration radioactivity testing
• Landfill and waste dump radiation assessment
• Medical X-ray equipment monitoring and radiation source location
• Personal property, jewelry, ceramic and glassware radiation screening

Certifications and Quality Assurance

Every GM-300 unit is supported by test reports from CMA and CNAS accredited institutions and holds CE certification. With a measurement accuracy better than ±20%, a wide energy response and a user-settable alarm threshold, the detector delivers dependable readings that professionals can rely on in demanding field conditions.

Ordering Information

With a minimum order quantity of just one piece, a monthly supply ability of 300 units and a fast delivery time of 5–10 working days, CESTSEN makes it easy for buyers worldwide to source reliable radiation detection equipment. Choose the GM-300 series for precise, portable and dependable radiation monitoring from a professional portable radiation detector manufacturer.