shenzhen baichuan electronics
GM-100 series personal dosimeter, GM-300 series radiation dosimeter, and MR-50 series radiation sounder as well as radiation probe and monitoring system. GM-300 series radiation dosimeter adopts an exquisite design, TFT liquid crystal display, and sound, light, and vibration alarm, using a variety of GM tube detectors, for monitoring alpha, beta, gamma, and gamma rays to provide good performance. Small in size, lightweight, easy to carry, and can be charged online. It is a multifunctional radiation safety monitoring instrument for personnel engaged in contact with isotopes or radiation devices, production and processing materials, import and export products, electronic equipment, individual dose monitoring, and other radiation safety monitoring instruments.
| Function/Model | GM-300-A | GM-300-B | GM-300-C |
| Ray type | Hard beta, gamma and Χ rays | Hard beta, gamma, and Χ rays | alpha, beta, gamma, and Χ rays |
| Detector type | Glass Geiger tube | Metal Geiger tube | US LND712 Geiger counter tube |
| Measuring range | 0.01-1000µSv/h | 0.01-1000µSv/h | 0.01-1000µSv/h |
| Energy response | 40KeV-1.5MeV | 40KeV-1.5MeV | 40KeV-3MeV |
| Measurement accuracy | ±20% | ±20% | ±20% |
| Unit of measurement | uSv/h，mR/h, CPS, Curve drawing, cumulative dose ( Radioactivity Bq/cm ² GM-300-C only) | ||
| Alarm value function | The alarm threshold can be set | ||
| Alarm mode | Sound and vibration (independent switch) | ||
| Cumulative time | 1 to 9999 minutes can be set | ||
| Cumulative dose | Automatic accumulation, manual reset | ||
| Maximum retention | Automatic hold maximum | ||
| Curve observation | Last 1-hour curve map, and automatically calculate the maximum and average | ||
| Measurement mode | Fast and smooth modes are available | ||
| language | Chinese and English menu | ||
| Operating temperature | -20℃～60℃ | ||
| Working humidity | 5%-95%RH (no condensation) | ||
| Battery specification | Type-C charging port, 2200mAh, 3.7V 18650 Lithium battery | ||
| Charging time | ＜ 6h | ||
| dimension | 120*58*28.5mm | ||
| weight | This machine is about 120g | ||
| certification | CMA and CNAS certification body test report, CE certification | ||
